Hi Guys,
This is a common error with Plesk. When you try to access the panel, it will give you the following error.
ERROR: SWKeyExFatalError
xmlrpc error: XML parsing failed
0: common_func.php3:4523
of_get_key_by_product(string 'plesk-win')
1: common_func.php3:4523
getPleskKey()
2: common_func.php3:4602
getKeyProp(string 'demo')
3: auth.php3:54
The error is causing because %plesk_dir%\admin\repository\registry.xml must be corrupted.
To fix this error please check the size of %plesk_dir%\admin\repository\registry.xml file. If it is empty, remove it.
Now try to access the panel again. Panel will load fine and the file will be regenerate.