Hearthstone account stuck in a loop

I was in a tavern brawl with a friend when he got disconnected. Since then the account says that “waiting for the opponent to reconnect”. Even when I reopen the game it connects me back to that back and the same message pops up. My friend does not have that issue and when he reopened his game he did not connect to our previous game.
Kindly look into this asap.
Thanks