Gragas barrel went in another dimension. Unable to make it explode for the rest of the game

I made a barrel to the left of the wall a little bit higher then the bush near the gromp blue side and the barrel didnt appear. For the rest of the game i wasnt able to use my Q. it was stuck at make the barrel explode but the barrel went in another dimension. I tried to reconnect but it changed nothing. Could you look into it please?