Got disconnected from a game and cannot reconnect

I just got randomly disconnected from a Mordekaiser game (Team Builder), so I basically quit the game and, after realizing that my network connection is perfectly fine, tried to reconnect. However, the game is not showing the "Reconnect" button that would normally show up if you quit from an active game- it is instead showing the normal screen where I was even allowed to get into a queue for another game (pretty sure my old game has not finished yet). I went into all sorts of spectating websites and tried to see if I am currently in a game, but none of them are telling me that I actually am in a game. The game is not showing up in my match history, either (so it probably didn't end yet).

What am I supposed to do in this situation? I'm afraid that I probably will get reported for being afk :(