Problem with restore file from web interface

Hello,
I installed URbackup server on a Qnap nas (QUrBackup 2.1.19.0).
When I try to restore files from the web interface, the client fails the restore. Analyzing urbackup logs I see the following messages:

  • Cannot restore without crypto plugin
  • Client token empty. See client log file for error details. Running a file backup may fix this issue.
  • Error getting file list. Errorcode: TIMEOUT (2)

Anyone know how to help me?

Thank you.

I have similar issue with version 2.4.10