Database creation under Client or Domain Administrator account fails with the following error:
"Notice : Undefined index in c:\Program files\Swsoft\Plesk\admin\plib\class.DBAddForm.php"
Databases can be created without any problems under admin account.
This problem occurs because database server is not configured as default in Plesk. This could happen due to incorrect Plesk upgrade.
Please log into Plesk Control Panel as Admin, go to Server, Database Servers, Issued SQL server, Preferences
and toggle on "Use this server as default “