To be clear, this is NOT an issue for our users who installed Delta with AltStore PAL in the EU.
If you’re an App Store user however, you can install our TestFlight build in the meantime while we work on another solution: https://testflight.apple.com/join/aFVsc4vY
We’re very sorry for the inconvenience to our App Store users, and we’ll let you know if we hear more from Apple.