File Plugin with FTP Share - Broken File at Download and send E-Mail

Hi all

I included a local ftp share in the file plugin. The connection works fine.
I can upload a file and see it too. The file has the correct rights and size on the server.

When i download the file, the file size on the local PC is only 0KB and the file is broken.
The same problem exists when sending the file via e-mail, file is broken at the recipient.

I can easily delete the file.

There are a lot of errors in the Apache Error Log:

When clicking on the tab File
apache2/kopano_ssl_error.log

[Wed Feb 21 19:10:13.193479 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][AccountStore] Found 1 accounts., referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.193674 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][BackendStore] Searching for external backends in /usr/share/kopano-webapp/plugins/, referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.194080 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][BackendStore] Registering backend: FTP, referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.194391 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][BackendStore] Registering backend: Webdav, referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.195277 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][BackendStore] Registering external backend: Owncloud, referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.195605 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][BackendStore] Registering external backend: SMB, referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.203461 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][FilesBrowserModule] [cache] memcached storage could not be loaded. Using files storage., referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.205667 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][FilesBrowserModule] [constructor]: executing the module as uid: USERNAME, referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.248098 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][AccountStore] Found 1 accounts., referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.248290 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][FilesAccountModule] Sorting by account_sequence in direction: ASC, referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.291974 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][AccountStore] Found 1 accounts., referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.292084 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][BackendStore] Searching for external backends in /usr/share/kopano-webapp/plugins/, referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.293629 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][BackendStore] Registering backend: FTP, referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.294782 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][BackendStore] Registering backend: Webdav, referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.296481 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][BackendStore] Registering external backend: Owncloud, referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.297674 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][BackendStore] Registering external backend: SMB, referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.299365 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][FilesBrowserModule] [cache] memcached storage could not be loaded. Using files storage., referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.300914 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][FilesBrowserModule] [constructor]: executing the module as uid: USERNAME, referer: https://192.168.20.161/
[Wed Feb 21 19:10:13.302033 2018] [:error] [pid 3944] [client 192.168.10.63:63081] [DBG][FilesBrowserModule] sorting by account_sequence in direction: ASC, referer: https://192.168.20.161/

When uploading a file
apache2/kopano_ssl_error.log

[Wed Feb 21 19:16:01.668604 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][AccountStore] Found 1 accounts., referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.668828 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][BackendStore] Searching for external backends in /usr/share/kopano-webapp/plugins/, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.669397 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][BackendStore] Registering backend: FTP, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.669910 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][BackendStore] Registering backend: Webdav, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.671020 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][BackendStore] Registering external backend: Owncloud, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.671634 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][BackendStore] Registering external backend: SMB, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.672657 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][FilesBrowserModule] [cache] memcached storage could not be loaded. Using files storage., referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.673414 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][FilesBrowserModule] [constructor]: executing the module as uid: USERNAME, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.673913 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][FilesBrowserModule] Checking: #R#5fc40935e8b2bc77e9f4b538fcbd0d33/, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.674097 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [BACKEND_FTP]: Base path set to /, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.674406 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [BACKEND_FTP]: SSL extention was set to , referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.674484 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [BACKEND_FTP]: Passive mode: , referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.674639 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [BACKEND_FTP]: false, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.729596 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][FilesBrowserModule] Getting content for: /, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.731976 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [BACKEND_FTP]: [LS] failed: , referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.732084 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [BACKEND_FTP]: [LS] done in 0.0024058818817139 seconds, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.732166 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][FilesBrowserModule] Checking rec: /03_1.png, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.753924 2018] [:error] [pid 5466] [client 192.168.10.63:63254] PHP Warning:  Missing boundary in multipart/form-data POST data in Unknown on line 0, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.778366 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][AccountStore] Found 1 accounts., referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.778463 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][BackendStore] Searching for external backends in /usr/share/kopano-webapp/plugins/, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.779071 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][BackendStore] Registering backend: FTP, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.779402 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][BackendStore] Registering backend: Webdav, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.780188 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][BackendStore] Registering external backend: Owncloud, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.780518 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][BackendStore] Registering external backend: SMB, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.780863 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [BACKEND_FTP]: Base path set to /, referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.781089 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [BACKEND_FTP]: SSL extention was set to , referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.781130 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [BACKEND_FTP]: Passive mode: , referer: https://192.168.20.161/
[Wed Feb 21 19:16:01.781251 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [BACKEND_FTP]: false, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.133193 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][AccountStore] Found 1 accounts., referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.133303 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][BackendStore] Searching for external backends in /usr/share/kopano-webapp/plugins/, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.133847 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][BackendStore] Registering backend: FTP, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.134111 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][BackendStore] Registering backend: Webdav, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.134915 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][BackendStore] Registering external backend: Owncloud, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.135259 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][BackendStore] Registering external backend: SMB, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.135984 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][FilesBrowserModule] [cache] memcached storage could not be loaded. Using files storage., referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.136609 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][FilesBrowserModule] [constructor]: executing the module as uid: USERNAME, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.137084 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [BACKEND_FTP]: Base path set to /, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.137141 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [BACKEND_FTP]: SSL extention was set to , referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.137163 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [BACKEND_FTP]: Passive mode: , referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.137323 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [BACKEND_FTP]: false, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.362639 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][FilesBrowserModule] Getting cache for node: 5fc40935e8b2bc77e9f4b538fcbd0d33/ ## USERNAMEb2b30d649006368d05e77ea35e871b20, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.362965 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][FilesBrowserModule] Uncached query! Loading: 5fc40935e8b2bc77e9f4b538fcbd0d33/ -- y, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.369040 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [BACKEND_FTP]: [LS] /: -rw-r--r--   1 USERNAME-ftp USERNAME-ftp     3290 Feb 21 18:16 03_1.png, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.369539 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [BACKEND_FTP]: [LS] done in 0.0064980983734131 seconds, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.369894 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][FilesBrowserModule] Setting cache for node: 5fc40935e8b2bc77e9f4b538fcbd0d33/ ## USERNAMEb2b30d649006368d05e77ea35e871b20, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.370486 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][FilesBrowserModule] parsing: /03_1.png in base: #R#5fc40935e8b2bc77e9f4b538fcbd0d33/, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.370822 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][FilesBrowserModule] [loadfiles]: getFolderContent took: 0.008213996887207 seconds, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.370927 2018] [:error] [pid 5466] [client 192.168.10.63:63254] [DBG][FilesBrowserModule] sorting by filename in direction: ASC, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.396051 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [DBG][AccountStore] Found 1 accounts., referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.396180 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [DBG][BackendStore] Searching for external backends in /usr/share/kopano-webapp/plugins/, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.396676 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [DBG][BackendStore] Registering backend: FTP, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.397028 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [DBG][BackendStore] Registering backend: Webdav, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.397996 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [DBG][BackendStore] Registering external backend: Owncloud, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.398386 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [DBG][BackendStore] Registering external backend: SMB, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.399164 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [DBG][FilesBrowserModule] [cache] memcached storage could not be loaded. Using files storage., referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.400045 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [DBG][FilesBrowserModule] [constructor]: executing the module as uid: USERNAME, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.400476 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [BACKEND_FTP]: Base path set to /, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.400531 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [BACKEND_FTP]: SSL extention was set to , referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.400554 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [BACKEND_FTP]: Passive mode: , referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.400774 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [BACKEND_FTP]: false, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.455230 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [DBG][FilesBrowserModule] Loading nodes for acc: 5fc40935e8b2bc77e9f4b538fcbd0d33 (FTP), referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.455330 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [DBG][FilesBrowserModule] Getting cache for node: 5fc40935e8b2bc77e9f4b538fcbd0d33/ ## USERNAMEb2b30d649006368d05e77ea35e871b20, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.456486 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [DBG][FilesBrowserModule] Uncached query! Loading: 5fc40935e8b2bc77e9f4b538fcbd0d33/ -- y, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.458923 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [BACKEND_FTP]: [LS] /: -rw-r--r--   1 USERNAME-ftp USERNAME-ftp     3290 Feb 21 18:16 03_1.png, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.459343 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [BACKEND_FTP]: [LS] done in 0.0027840137481689 seconds, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.459417 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [DBG][FilesBrowserModule] Setting cache for node: 5fc40935e8b2bc77e9f4b538fcbd0d33/ ## USERNAMEb2b30d649006368d05e77ea35e871b20, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.459898 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [DBG][FilesBrowserModule] parsing: /03_1.png in base: #R#5fc40935e8b2bc77e9f4b538fcbd0d33/, referer: https://192.168.20.161/
[Wed Feb 21 19:16:02.460042 2018] [:error] [pid 5567] [client 192.168.10.63:63256] [DBG][FilesBrowserModule] [loadFilesTree]: getFolderContent took: 0.0047259330749512 seconds, referer: https://192.168.20.161/

When delete a file (File is deleted correctly)
apache2/kopano_ssl_error.log

[Wed Feb 21 19:17:15.472819 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][AccountStore] Found 1 accounts., referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.473034 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][BackendStore] Searching for external backends in /usr/share/kopano-webapp/plugins/, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.473316 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][BackendStore] Registering backend: FTP, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.473554 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][BackendStore] Registering backend: Webdav, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.474644 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][BackendStore] Registering external backend: Owncloud, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.474972 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][BackendStore] Registering external backend: SMB, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.475786 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][FilesBrowserModule] [cache] memcached storage could not be loaded. Using files storage., referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.476337 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][FilesBrowserModule] [constructor]: executing the module as uid: USERNAME, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.476658 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [BACKEND_FTP]: Base path set to /, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.476757 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [BACKEND_FTP]: SSL extention was set to , referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.476820 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [BACKEND_FTP]: Passive mode: , referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.476880 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [BACKEND_FTP]: false, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.526805 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [BACKEND_FTP]: [DELETE] start for dir: /03_1.png, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.531522 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [BACKEND_FTP]: deleting file: , referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.532378 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [BACKEND_FTP]: [DELETE] done in 0.0055909156799316 seconds: 1, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.532643 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][FilesBrowserModule] deleted: #R#5fc40935e8b2bc77e9f4b538fcbd0d33/03_1.png, worked: 1, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.532830 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][FilesBrowserModule] Removing cache for node: 5fc40935e8b2bc77e9f4b538fcbd0d33/ ## USERNAMEb2b30d649006368d05e77ea35e871b20, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.561101 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][AccountStore] Found 1 accounts., referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.561461 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][BackendStore] Searching for external backends in /usr/share/kopano-webapp/plugins/, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.562024 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][BackendStore] Registering backend: FTP, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.562324 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][BackendStore] Registering backend: Webdav, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.563137 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][BackendStore] Registering external backend: Owncloud, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.563518 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][BackendStore] Registering external backend: SMB, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.564247 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][FilesBrowserModule] [cache] memcached storage could not be loaded. Using files storage., referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.565014 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][FilesBrowserModule] [constructor]: executing the module as uid: USERNAME, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.565456 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [BACKEND_FTP]: Base path set to /, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.565679 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [BACKEND_FTP]: SSL extention was set to , referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.565946 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [BACKEND_FTP]: Passive mode: , referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.566156 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [BACKEND_FTP]: false, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.621264 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [BACKEND_FTP]: [DELETE] start for dir: /03_1.png, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.622267 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [BACKEND_FTP]: deleting dir, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.625377 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [BACKEND_FTP]: [DELETE] failed: ftp_rmdir(): /03_1.png: No such file or directory, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.626179 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][FilesBrowserModule] deleted a directory that was no longer available, referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.626566 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][FilesBrowserModule] deleted: #R#5fc40935e8b2bc77e9f4b538fcbd0d33/03_1.png, worked: , referer: https://192.168.20.161/
[Wed Feb 21 19:17:15.627068 2018] [:error] [pid 5396] [client 192.168.10.63:63270] [DBG][FilesBrowserModule] Removing cache for node: 5fc40935e8b2bc77e9f4b538fcbd0d33/ ## USERNAMEb2b30d649006368d05e77ea35e871b20, referer: https://192.168.20.161/

Lots of logfile, sorry …

Does anyone have an idea what the problem is?

Many thanks for the help

Greeting
Simu

i have the same problem

Maybe its related to the known issue:

https://forum.kopano.io/topic/1182/webapp-3-4-8-is-available

rg
Christian

@simu Could you run the latest files (2.1.2) and if possible the latest webapp.