@z4-n reinstall mod(delete and install again) go to the left corner with the opera logo click help click about copy the 'profile' section press win+r paste the path there search for extension and the first folder that isnt named temp is the mod folder. click that and look for 'wallpaper' folder. big thanks to @Dogmaker

@dogmaker Thank You!!!!!!!!! It Worked!!!!!

@michaelufot8-0 thats exactly whjat i searched and guess what? that post was the first thing that popped up