Error rendering dashboard - Minified React error #31

Product: PowerShell Universal
Version: 5.6.6

When accessing an app that was running several weeks without issues, I’m getting a rendering error that appears very short time (couldn’t nearly screenshot it) and immediately redirects me to the “unauthorized” page.

As I did not make any changes to the app I’m wondering where this error comes from but I can’t find any issues in the logs.

Already rebooted PSU server but no change.

any help welcome !

Regards, Markus