League Client Scanning Files non-stop, stuck at 33%

I sent another bug report earlier. And Just now, I was trying to go into a game but i got disconnected and couldn't reconnect. The client started and was scanning files non-stop, suck at 33%. I tried restarting the client, clearing the client from processes etc. I ended up giving up and let the client run, and files kept being scanned. I think it took around 15-20 minutes before it moved, and by the time I reconnected, the game I was in had finished and I got reported for leaving game.

Please help me check the bugs please. Thank you.