unturned resoliution problem

My monitor is 1920 1080 and when i try to put unturned resoliution on that it makes it somewhere around 800 640 the highest resoliution i can go is 1024 768 above that it turns it into 800 640
this issue began when i reinstalled the game like a week ago before that the 2years of playing unturned were fine
i’ve tried reinstallling verifying game files launch options nvidia settings display reoliution and so on. nothing worked
pls reply :C

what size is your monitor?

resoliution is 1920x1080