Every time I try to change my pfp from something that Lioden hasn't made, it never works..

I've tried to use imgbb, (i cant use imgur on this chromebook) I've tried to use other websites like this, ive tried to turn the picture into a link. Nothing is working and I need some help

The image is 150 x 150, that is not the problem, it'll either say "Found image" and itll show up until i refresh then i get the box you can see now. Or it'll say it can't find the image and the box stays. This is honestly just pissing me off

Is there a different hosting site people use? or is mine just not working for me?