Cheat detected

It came cheat detected and they made me lose my game what is the reason I cant understand

I don't understand either. You didn't play anything out of the ordinary but well what can I say

I guess you left analysis board on. You aren't flagged, but be careful.

It is bug which arises when someone uses analysis board with the same position during the game with a motive to cheat.
It fixes itself when you dont try to cheat again

Once i had such message.It is said same.May be sometimes issues?

Что это? Ребёнок заучил дебют, а ему ставят баранку после 9 хода. lichess.org/sjBQMVSe

It's not a bug, it's a future. It helped me win a totally lost position...

lichess.org/W19poGYB/

Next time don't use analysis board in another tab to cheat.

I guess you either intentionally or unintentionally left the analysis board on another tab. You should always close any analysis. Just have one lichess tab open.

@VojvodaMilenko i am not a cheater!
and how is this topic closed?