Champ select froze, couldn’t relog

1 I picked my champ, Xayah 2 opposing team goes to pick and I see Jinx, and the game freezes 3 I reset the game over and over with no result 4 Once I finally got to “sign-in”, it said “a problem has occurred...”, and I had to wait for the in-game surrender and reset my computer before I could log back in 5 Lost 19 LP because of a client bug or someone cheating