Can’t connect to games?? (CLIENT)

Whenever I try to enter a game of any kind, after champ select I am brought to the game reconnect screen where it says I am in a game. However there is not the reconnect button on the screen so I can’t reconnect. It’ll then freeze my entire computer where I then have to force shut down the pc and restart it. This has resulted in leaverbuster for me too but if you guys can’t remove it I completely understand