So as i've seen many people had this problem and i don't know if this is going to solve mine.
I was playing ranked as J4 in jungle, and i helped my team get ahead, when 15 minutes kick-in my game continously crashes, no matter how many times i tried to comeback to it. Result? My team won 4v5 and i lost 19 LP, why did i lose 19 LP? I helped my team get that win, they were not exacly in front before i started doing something in the game.
All i ask is that either get these 19 LP Back or actually get some LP.
The crashes were not my fault. My team won the game, i helped them do so in the first 15 minutes, i feel like i should be given something instead of being pissed on.