Dear Raja,
Here I definitely understand that this is out of your support scope.
But, However, I tried to find out the way to check / access , wp-confing.php file in VPS.I am not able to locate it.
Sorry in advance for trouble, But If you could please tell me that how can find wp-confing.php in VPS , I would be able to correct the issue.
It is out of your support scope. But, If you can help if possible.
Thanks.