This error is pointing to PowerCMSConnection.php on a local computer, while I am using an external database.
The D: disk is on the same local computer.
Warning: mysql_pconnect(): MySQL server has gone away in D:\xampp\htdocs\website\Connections\PowerCMSConnection.php on line 9
$PowerCMSConnection = mysql_pconnect($hostname_PowerCMSConnection, $username_PowerCMSConnection, $password_PowerCMSConnection) or trigger_error(mysql_error(),E_USER_ERROR);
So when I open the website on this local computer I am getting this error.
The error is not on the external hosted version of this website.