[PHP Event Calendar for WordPress] mysqli_real_connect()

Brand new install of website with temporary address of

Plugin just installed, error(see below), uninstalled. Deactivated all other plugins reinstalled still getting the error below.

When I go to Event Calendar > Events Management this error occurs “Warning: mysqli_real_connect(): (HY000/2005): Unknown MySQL server host ‘aab92636914819.db.2636914.hostedresource.com:3307’ (0) in /home/content/p3pnexwpnas02_data03/14/2636914/html/wp-content/plugins/php-event-calendar/server/adodb5/drivers/adodb-mysqli.inc.php on line 113
Error: Could not connect to the database”

On a temporary address. https://aab.9c0.myftpupload.com/

https://www.ads-software.com/plugins/php-event-calendar/