i got warned for resigning a game early

why did this happen? i resigned because my mouse died and i decided to resign because its a bullet game and my time was too low, and it said i got a warning

So you're talking about this game?
Well, "li" websites :P have these types of warnings.

The servers thought that you resigned on purpose. But I think there's no such warning on resigning 1 game. Its much likely that you have resigned much more games in other variants or time controls.

thats still better in lichess ur team gets closed with a single report but the mods don't feel to check its truth or warn the guy who was reported