MySQL Client funktioniert nicht

SQLPro for MySQL is a lightweight but powerful MySQL and MariaDB database client, which allows quick and simple access to MySQL/MariaDB Servers including cloud services such as Amazon RDS, Microsoft Azure and Digital Ocean. + Tabbed based interface for an optimal user experience (iPad). + Dark & Light themes which can be switched manually or automatically adjusted by your devices brightness. + SSH Tunnelling (password authentication & private key auth).  Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.  SQLPro requires a Premium upgrade in order to interact with database result sets.  Your Account will be charged for renewal (based on your selected plan) within 24-hours prior to the end of the current period.  Subscriptions auto-renew within 24 hours of the expiration date unless auto-renewal is turned off in the iTunes account settings.  Premium is available as either a Lifetime Purchase or through a Subscription with Monthly and Yearly options.  SQLPro for MySQL works with MySQL & MariaDB.  It will not work with other database servers such as MSSQL, PostgresSQL or Oracle.  Payment will be charged to your iTunes Account at confirmation of purchase.