User may not have permissions to access this folder. Errno is 0

Hi

I do not get why I am getting this error. There used to be no issue with this client and its backups.

Debian Testing UrBackup 2.4.13 , Debian Testing UrBackup Client Controller v2.4.11.0

Errors
	
12/30/20 01:45
	Error while listing files in folder "/home/USER/.cache". User may not have permissions to access this folder. Errno is 0
Errors
	
12/30/20 01:45
	Indexing files failed, because of error
Errors
	
12/30/20 01:45
	Constructing of filelist of "USER" failed: error - index error
Errors
	
12/30/20 01:45
	Error during parallel hash load: TIMEOUT
Errors
	
12/30/20 01:45
	Backup had an early error. Deleting partial backup.