Cant seem to complete full file backup

Hello, I am starting to implement urBackup software on some of my managed workstations and servers.

on one of my servers I get the following error :

Starting unscheduled full file backup…
Selected no components to backup
Restarting shadow copy of D:\ because it was started by this server
Indexing of “D” done. 14742 filesystem lookups 0 db lookups and 0 db updates
Restarting shadow copy of C:\ because it was started by this server
Indexing of “C” done. 1585 filesystem lookups 0 db lookups and 0 db updates
CommitSRV: Loading file list…
CommitSRV: Started loading files…
Error getting file metadata. Errorcode: BASE_DIR_LOST (7)
Error getting complete file “cooUjlkKERTg0CbQvewq|D/CommitSys/CommitDocs/doc/מוצגים/- חקירה ראשונה/VIDEO_TS/VTS_01_1.VOB” from CommitSRV. Errorcode: TIMEOUT (2)
Saving incomplete file.
Client CommitSRV went offline.
Waiting for file transfers…
Client had timeout. Retrying backup soon…
Waiting for file hashing and copying threads…
Writing new file list…
Transferred 106.33 MB - Average speed: 231.736 KBit/s
(Before compression: 221.445 MB ratio: 2.08262)
108.099 GB of files were already present on the server and did not need to be transferred
Time taken for backing up client CommitSRV: 1h 48m 54s
Backup failed

what can be the cause of the failing backup?
it never manages to complete the file backup.

I guess it has to be something with this line :
“Error getting file metadata. Errorcode: BASE_DIR_LOST”

thank you for the help.
Jeka.

Maybe the odd charset is causing that problem.
Do other files with that charset backup properly?
Does it works if you rename it with ascii chars only?