I can't log at all on mobile bnet

I am using an iphone 6, the machine is up to date, so they say… iOS 12.5.5! It was working just fine yesternight, I don’t know what happened but I tried to use the app before bed, and I couldn’t just use it anymore. Each time I start the application, we see the battle-net logo, no loading at all, then? Nothing, it returns me on home screen. I tried to delete the app, and re-download battle-net many times, didn’t fix anything. I also closed my phone as well, and see if restarting would fix the issue but nah! >< My connection is not the problem… it works!