Frozen my champion at about 1.30 - 2.00 minutes in match

hello from 2 days on it started to freeze my champion when i m in early match. i can see everything moving, what everyone is typing etc. but i cant .anyway it seems that after i restart the game i can play normally but it s really annoying as i ruined some matches because of this . i tried to look up for a solution online but i saw nothing useful. repair kit and reinstalling seems not to work. thaxn*[zombie-brand-clap]*