Check your templates, especially member_profile. If you view the HTML of that page, you can see that that template is being included, but it's empty. Also, and incidentally, I'm not sure what the i=1 query parameter is that's being added to the URL - it seems only to be added when there's a referring page.
Support Guidelines
Here's the rundown:
No illegal stuff
No hacking, warez
Your board must display the 'Powered by MyBB' message in the footer, and be visible
No racism or hate related content
The full policy can be viewed at
https://mybb.com/support/eligibility-policy/.
your member page is loading fine for me.
However the link provided is leading to a page of a member profile who doesn't exist.
