Changing server, now "Fatal error: Cannot instantiate non-existent class"

[mabbo]

Hello

 

Quite some time ago I built an OSCommerce site for my friend and hosted it on my old server. I was planning to transfer it once he purchased a domain name and some hosting. The site I created worked fine on my server.

 

My friend finally got his domain and hosting sorted. I have installed OSCommerce on his webspace and created a new database etc. I copied all of the files from the working site from my web space, and pasted it to the new webspace and over wrote the fresh OSCommerce install. I changed the details on the includes/config.php file to point to the new database instead of the database on my webspace.

 

Now, the site gives the error message:

"Fatal error: Cannot instantiate non-existent class: infoboxheadingcategories in /home/sites/domainname.com/public_html/includes/boxes/categories.php on line 315"

 

When I created the site, I used several add ons, but it has been that long since I have done any web design I have forgotten loads, and am now limited to viewing code in Notepad.

 

Can anyone suggest where to start looking for problems?

 

Cheers