The following similar "Fatal error" displays when clicking the Commerce Pro Admin panel from the Netfirms Control Panel if you have configured your account for PHP5:
Fatal error: Cannot re-assign $this in /mnt/web_r/d42/s46/b024b537/www/test2/nfoscomm/catalog/admin/includes/classes/upload.php on line 31
The error is caused because Netfirms Commerce Pro is based on PHP4 rather than PHP5. To resolve the error message, please follow the instructions below:
1. Using an FTP tool (eg. Filezilla) download a copy of ../catalog/admin/includes/classes/upload.php
2. Using a text editor (eg. Notepad), open upload.php and locate the following line
$this = null;
3. Change the above line to:
// $this = null;
4. Save and upload the revised upload.php back to the the server in ../catalog/admin/includes/classes/