I cant reconnect after getting an dc

So today i played a ranked just like everyday but then i got an dc. At first i was like " oh okey my internet connection is bad again " but then i checked it and i had internet connection. Then i decided to Leave the game to reconnect again but i couldnt. There was no "reconnect" button. After this i was salty because it was a important ranked game for me. Please fix this riot it happened to me now 3 times and it is so annoying .