Membership Plugin not compatible?

Hello,

I am using ultimate Member as my Membership plugin. I was able to install it and tested it. It seems to work except that I can’t upload any images (cover or profile). I have this plugin installed with orizon and it works perfectly there.

I’ve seen a post regarding this and he says it’s because of “wp-wall”. I would like to keep this plugin so i would appreciate any other solution.

File I tested with

Result