server lag dissconect and game is gone?

so all of a sudden MAASSSSSSSSSIVEEE server lag everyone was laging eventluly i lost connection i tried to shut down the game and then go back and.. when i tried to go back in whelp i can't even rejoin the game its ...just gone the reconnect button and.. welp the game is still happening but i can't join i can however i can go and join ohter games 0 problem..? like huh? what how? ... riot what the fuck plz