Version 2.2.3 Final according to the changelog.txt file.

I moved the site within my domain. I did this one before but I can remember having this issue.

Basically I moved all the files from the root to a new directory.

from http://www.domainname.com

to http://www.domainname.com/newdirectory

Then I went in, CHMOD the mainfile.php and just added "/newdirectory" to the appropriate places. CHMOD the mainfile.php back to 444 and got the 500 Server Error.

I emptied the cache and template_c folders as well.

Don't know if it's a .htaccess file thing (moved it as well)

It does have

RedirectMatch "^/xoops/?$" "http://www.domainname.com/"

This was for the original install I did several years ago where I installed it first in the xoops directory then moved it to the root.

There is something installed in the root so I can't tell the redirect to redirect from the root or they'd never see the main site.

Any thoughts? THANKS

Did you empty the cache directory?
Verify also in your files (eg theme) if the full URL was used.
Same goes for the use of it in your database. Do a search in your backup and correct.

But it is also possible that your URL rewriting is failing. I should think that you have to add the subdirectory there as well.

Do you have any .htaccess file in your root ?
Try to remove this and try it again, i have some problems with some hosts like one.com when im use .htaccess