Database Connect Error (1130) Host 'p3plcpnl1016.prod.phx3.secureserver.net' is not allowed to connect to this MariaDB server

You need to set your database connection in vsadmin/db_conn_open.php

For help setting your database connection please see...
http://www.ecommercetemplates.com/phphelp/ecommplus/instructions.asp#dbconn

We also have a support forum here...
http://www.ecommercetemplates.com/support/