0. What version of VB?
1. Make sure all of the files are properly uploaded.
2. Pro or Demo version?
3. SSL enabled?
4. What version of PHP are you running?

Version 4.2.5
All files are uploaded properly checked couple of times.
if you meant as mod version, using this version from vb.org
SSL not enabled
PHP version 7.1

Appreciate your help.

The problem is PHP 7.1
Not sure if there are any fixes posted anywhere in the thread but somewhere I think I remember something about the PHP versions and the demo vs pro version. Been a long time...

Hmm php i can downgrade not a biggie.... I will try to go through the thread so let's see if i can find anything or anyone can give any guidance.

Thanks

So it dont work on 4.2.5. php 7.2?

vBulletin v4.2.5 is only approved for up to PHP 7.1 Anything beyond will require the core files to be updated. Any addons listed should be PHP 5.6 compatible. Anything beyond that, is an unknown as each coder had different skill sets and when the code was written may or may not have been with PHP 7.x was released or updated there after. I do have someone who can help you. Just PM me if your interested.