Returning to 404

Whenever I click media on a users profile - it returns to a 404 Error. Been trying to troubleshoot this for hours now. Please Help. Don't know what I'm doing wrong. Thanks in advance.

I just started using this plug-in today, so not sure if this will work. But I had 404 errors. I saw in the faq that if you reset the permalinks it will fix those. It worked for me.

refer this troubleshooting page, hope it will resolve the issue.