google play unity not working?

Question

Android

I made a small application .. downloaded google play services, installed, configured .. after half a day of all sorts of errors, figured it out a bit and uploaded it to the play market. Everything was fine and went to Google Play Games, the achievements worked and the leaderboard too .. then I decided to add Unity ADS (ads) in the final of everything and after that Google Play Games stopped working .. tobish in general emptiness and silence, 0 reactions. I press the button to log in - 0 reaction, nothing is even displayed. Through the start function, too. By any means, 0 reaction .. I can’t even google anyone with the same problem, everyone has a different one, when there is a reaction, they say it enters, but it just doesn’t enter .. tell me what’s the matter, maybe someone has come across such nonsense. Tomorrow I'll try to remove ads from scripts and upload .. But I don't think that because of adding unity ads, google play has crashed,