No such file or directory error

Hi!

I have a fresh installed urbackup server (2.5.31). I deployed the client from the server to 2 windows server.
I have this error after a random time:

Errors 2023.09.06 16:11 Error opening file “/backup/urbackup/192.168.12.40/230906-1611/.b68xO+K9SCOF35cLk4Bf9Q/1” for reading file. File: temp_fn. No such file or directory (code: 2) Target path: “/backup/urbackup/192.168.12.40/230906-1611/C/Baber_mentes/Kozos2022.01.12. - 16.51.15.SC”
Errors 2023.09.06 16:11 Error opening file “/backup/urbackup/192.168.12.40/230906-1611/.b68xO+K9SCOF35cLk4Bf9Q/1” for reading file. File: temp_fn. No such file or directory (code: 2) Target path: “/backup/urbackup/192.168.12.40/230906-1611/C/Baber_mentes/Kozos2022.01.12. - 22.50.05.SC”
Errors 2023.09.06 16:11 Error opening file “/backup/urbackup/192.168.12.40/230906-1611/.b68xO+K9SCOF35cLk4Bf9Q/0” for reading file. File: temp_fn. No such file or directory (code: 2) Target path: “/backup/urbackup/192.168.12.40/230906-1611/C/Baber_mentes/Kozos2022.01.11. - 16.16.56.SC”
Errors 2023.09.06 16:11 Error opening file “/backup/urbackup/192.168.12.40/230906-1611/.b68xO+K9SCOF35cLk4Bf9Q/0” for reading file. File: temp_fn. No such file or directory (code: 2) Target path: “/backup/urbackup/192.168.12.40/230906-1611/C/Baber_mentes/Kozos2022.07.27. - 21.36.23.SC”
Errors 2023.09.06 16:11 Error opening file “/backup/urbackup/192.168.12.40/230906-1611/.b68xO+K9SCOF35cLk4Bf9Q/1” for reading file. File: temp_fn. No such file or directory (code: 2) Target path: “/backup/urbackup/192.168.12.40/230906-1611/C/Baber_mentes/Kozos2022.04.04. - 22.55.29.SC”

The backup process goes to 10-60% and randomly starts to drop this errors and halted.
Not the full backup nor the incremental backup working.

The server and the clients are in the same subnet, every port is opened.

What did i miss?
Thanks!

Is your server running on Windoofs too, or on Linux??

See also: Can't do filebackups anymore (renaming file failed, storing into /media/xxx/xxx failed), Error opening file)