What is the problem on there why does it always do that bug splat when i play twisted treeline and when i play as kayle too that bug splat always appear what should i do to that? can any one help me.

Put in a support ticket. Although, they will tell you to reinstall LOL. When is it happening?

I seriously had to delete everything riot related on my computer and reinstall the game. I manually deleted my c folder and everything. That was the only thing that worked for me. The repair and all the "Bug splat" repair tips didn't work.