No one on either team got any experience

Hi everyone, about 10 minutes ago I played a league of legends game as Yasuo that ran about 50 minutes long, and the enemy team aced us and they destroyed our nexus. Much to my disliking, I saw that in the game review screen, it said I got no experience. I was about to just brush it off my shoulder and play again, when people from mine and the enemy team started to talk in the chat about how they got no experience either. It wouldn’t bug me if the game wasn’t so long, but sitting there for an hour, trying our hardest, and getting literally nothing out of it was kind of disheartening. I took pictures of the review screen if for some reason anyone would need them. Please help soon! Thank you!