Strange data in weekly report

This site doesn't allow deletions of posts so I'm putting this here.
Authenticate/Decrypt packet error: packet HMAC authentication failed

Hello altogether, we still have a UTM here in version 9.719-3. We also have the latest Connect Client. There is now one employee, at least I only know of one, who keeps getting the message “Authenticate...
How to https://sites.google.com/site/unblockedgames77

How to sites.google.com/.../unblockedgames77