I have this ERROR/BUG just on my account

ok, i have that error the same thing that happens on the video i can't use the left click to move the minimap, buy things or select settings in menu, go out of the game (i need use alt f4) etc...

i try the solution that a RIOT support put there and the problem still with me :( ''But if i use my smurf account (lvl 1) the problem is not there. It happens only with my main account :( why!!

any person can help me? :(