vi q bug {GAMEPLAY}

So I just got out of a game and about 30 or so minutes into the match my q quit working. I tried typing q like you normally would when that failed tried pressing q on the screen with my mouse and it still didn't work. I wasn't doing the best so it's not like it cost me the game or anything but it definitely made the match a lot less fun for me seeing as all my favorite things to do with vi include her q. Don't really know what caused the bug it just kinda happened midway through the match.