Links producing 404 errors & redirect loops

Some of my links are producing 404 errors: wcsu.club/users/

And some are producing redirect loops: wcsu.club/profile/833-langan009/

here's the homepage: wcsu.club/

Looks like working to me...

The list of users is not working: wcsu.club/users/

And EasyBlog links are not working: wcsu.club/easyblog/latest/

I disabled SEF Advance in this site and I'm going to put it on another site. I think the problems has to do with easyblog.

Also, how to I add meta data and personalize links? I tried to do it in the meta section but it didn't work...

Meta data can be added only to manually added alias links. It's important to add the right non-SEF URL when adding the alias. Temporarily turn off SEF in global configurations in order to find correct non-SEF URL.