I solved the problem. The issue arises when you enter your email and password in the login tab. The app attempts to find a username that matches the email precisely, which leads to an error. However, when I log in using my username instead, everything worked flawlessly.

Guess which one is the only country that didn’t state support. Why did you think of Italy? (I’m Italian)

Italian here, I feel ashamed of our PM. It is even more ridiculous how she endorsed the relationship with US just a couple of weeks ago and then Trump started doing even more shitty things.