I got leaverbuster for a game that I carried and won...

Hi, I'm very annoyed. I was in the last game I needed to reach plat promos and my mouse stopped working. I restarted my computer, even told my team that I was restarting because my mouse wasn't working and I was freaking out check t he chat logs. I restarted my slow PC and it took like 3 to 5 mins to get back into the game. Then I managed to bring us back from super behind and won the game. So imagine my suprise when I get this notification.

Check the logs, I was in the game for almost the entire thing, and I had no deaths when I restarted my pc and was winning lane. Please riot wtf...

EDIT: I submitted a support ticket and the issue was resolved. Leaverbuster flagged me for reloading into the game and I guess I carried too hard and the game ended too fast.