Smile [Q] Applications from Google not working on tablet

Hello everyone, my problem is the following. A few days ago a bought a new tablet and rooted it. Everything was fine until now. Now when I try to open Gmail, Play store or anything Google related after a few seconds i get back immediately to my home screen. I tried to reset my phone but after that when I go to Settings->accounts>add account and click on Google to add my address nothing appears, also when i click on sign in in Youtube nothing shows up. I also tried to clear the caches, to enable the download manager and everything i saw on the forum but nothing helped.
Also i may have deleted something, I'm not sure. Help me please. How can i fix this? Thank you!!