Can't play in this gameeee(

I have *Battlefront 2* on the Epic Games Store, and when I click “Play,” it redirects me to the EA app, where I get an error message saying I can only change my password or try restarting the app. I tried changing my password, but it didn’t help. I don’t know what to do next. Plus, I can’t link my account through the website—there’s simply no button to link it to Epic Games, and conversely, I can’t link the EA app to Epic Games. Please, kind people, help me.