Playing Malzahar in a bot match in my smurf have not played in smurf account in 2 months

Mouse froze dead center of screen soon as it said continue couldn't move mouse to click. Its in my smurf mynameispurr. had to hit alt f4 to get out soon as i did window closed to endgame screen to see stats. was playing a int bot match for win of the day never seen the bug before.

Had played in my second smurf ladynicomakesyoupurr previously in a int bot match as well that account is around level 20