Bugsplat happening again!

It's not letting me play. It loads just fine and lets me get through champ select but when it goes to the loading screen, it exits the loading screen before the match and a bugsplat pops up and it says, "Oops! Something broke!" Then says "LOL client has crashed" This has been happening for 2 weeks and now I have afk warnings. Please someone help me so I dont lose my account and please remove the afk.