TestFlight builds expired immediately after new build upload & subsequent new build submission failure

I am experiencing a critical issue with my TestFlight builds and the App Store Connect submission process. I need urgent assistance as all my testing builds are currently expired. To fix the expiration, I increased the build number to Build 5 (Version 1.0.3) and uploaded it. I then tried to Submit for Review. The submission process failed, and I received an error message

Has anyone experienced a widespread issue like this recently? What steps can I take to troubleshoot the submission error, and why would all my builds expire simultaneously, just days after a new upload?

Thank you for your help!

TestFlight builds expired immediately after new build upload & subsequent new build submission failure
 
 
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