I cannot delete folders and files.

When I try to delete files from an old backup I get a message saying that they could not delete, to check the “Access Log” in QuLog Center. The backup job has been deleted in HBS.

And in QuLog Center I get this:

I’ve tried renaming it, but it didn’t work. I also checked the user and folder permissions, but didn’t see anything that could be blocking the deletion of these files and folders.
Any suggestions on what to do to be able to delete these folders and files.

Best to switch your UI to English before posting screenshots in an English forum

Also a ticket with QNAP support would be advised.