Object of class could not be converted to string

Dear all, 

We are experiencing this error: 

"Object of class xxxClass could not be converted to string"

I have searched google a lot mostly the results are for Drupal or badly
coded sites.

I have further found out that the issue is with PHP 5.2 version.

There isn't a problem with the script as it works on other servers with
prior versions, so I am wondering if any one has any tips or ways to go
about this error. Unfortunately we are in a position whereby we cant
downgrade PHP as it's a shared hosted server.

Any help will be appreciated.

Thanks, 


Web: http://www.elemental.co.za