Correspondence game shows lost by resignation, but I didn't resign

Hello, I have a game:



I think it is a likely draw.
However, it shows I resigned, but I never did such a thing. What could be the reason? Could somebody have the ability to resign my games for me? Has anyone experienced the same thing?

White was losing heavily, but still not sure how a resignation got put through.

Oh, you've been flagged as a cheater, so your game probably got resigned then

yes, and in the final position, it was mate in 5 black

What do you mean, I have been flagged as a cheater?

Your account has a red mark: it shows you have violated ToS. :<
You dont see it yourself - it is a shadowban - only others can see it when they open your profile.
You can see it when you logout and check your account as anonymous.
Anyway, the moment you get marked all your games are automatically lost.
In case you didnt cheat and want to appeal please read:
lichess.org/contact#help-appeal-cheat
and follow the instuctions given there.
All best!