Cannot create PoolableConnectionFactory

I’m trying to configure a database for the MySQL ConnectorJ driver but I got this faulted error:

What does it mean?

“Access denied for user …” means that the MySQL is not letting you connect with the username / password specified for that database connection in the Ignition gateway. Is “softelte_user’@'108-203-52-152.lightspeed.sntcca.sbcglobal.net” a valid username for your database? Can you log in with this username from MySQL Workbench (or Command Line / Terminal, or some other utility)?