Problem with review heatmap, "ghost review"

Hello everyone, i got a little annoying problem, since i tried to cheat the review heatmap (please don-t judge me like i was on reddit, i went on my grandma funeral, and at the moment i was pretty obsessional witht the streak, now it’s over), everyday, before i start reviewing, the app tell me that i already did 2 card


I did not find any ways to correct this, but then looking in my stats i found this (selecting the one month stat)

When i go for the one year overview it disappear

I really don’t know what it mean, if someone have a tip to erase this i’ll take it!
Thanks for reading (Sorry for my english, not native)

Bumping :confused: