Beta to Appstore app issues

I got this message today, and my eM Client has stopped working on my Mac. I downloaded the app from the Appstore, but just see a blank window, with no way to log in to my account or import emails (I have multiple accounts and a folder structure).
I’ve grown to rely on eM Client, and now suddenly it’s stopped working (just offline mode with historical emails). Grateful for any help please.

Screenshot 2024-06-07 at 13.10.41

Beta versions expire automatically after 3 months.

If you are finished testing the beta, you can downgrade back to the official version 9 release by following the downgrade instructions here .

Or you can install a newer beta from the Release History if you want to continue testing.