Parallels Plesk Panel is not accessible and shows this error message:
Fatal error: Call to undefined function of_get_key_by_product() in C:\Program Files\SWsoft\Plesk\admin\plib\common_func.php3 on line 4506
The following error appears in the event log of the server:
Event Type: Information Event Source: PHP-5.2.6 Event Category: (6) Event ID: 2 Date: 12/23/2008 Time: 8:02:36 AM User: N/A Computer: PLESK Description: The description for Event ID ( 2 ) in Source ( PHP-5.2.6 ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: php, PHP Warning: PHP Startup: Unable to load dynamic library 'C:\Program Files\SWsoft\Plesk\admin\modules\php_psakey.dll' - in Unknown on line 0.
To fix the issue, it is necessary to set Full Control permissions for the psaadm user on the "C:\Program Files\SWsoft\Plesk\admin\repository" folder on the server.