Why is my website redirecting to www.domainname.comwww.domainname.com?

[JohnParker2792]

It seems as if a website i have just started working on has a major issue where the 404 page isn't set up properly.

When you go to a page that doesn't exist it redirects like this.. "www.domainname.comwww.domainname.com"

How can i fix this?

Cpanel Host.

Very old version of joomla and virtuemart.

I looked at the visitor flow and about 200 visitors monthly that are dropping because of this.

[HandsomeWeb]

Check in the root directory for a file called .htaccess

A typical way of listing the 404 redirects in the file is like this:

ErrorDocument 404 /404-error-page.php

If you don't see a line that starts with "ErrorDocument" then Joomla or Virtuemart are causing the problem.  If it is an old version of Joomla, it needs to be updated anyway for security reasons.  If the line seems messed up in the .htaccess file, you can at least send it to a working page like this:

ErrorDocument 404 /index.php

Maybe that will at least send it to the front page.