While Roaming ABRP App on Android won't open

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/report-a-bug/while-roaming-abrp-app-on-android-wont-open/
———————————————————————————
I am from Austria and i drive regularly to Germany. Since some months already there is a bug on my phone, which doesn't allow me to open the ABRP App while i am connected to a mobile provider from germany. I have tried everything i could think of: deleting cache, reinstall app, install beta Version, try another mobile service provider,… And yes i have Internet and can watch YouTube or surf every website during the time i am in Germany, it's only ABRP that seems to be affected.