I can't connect to MySQL Database with plugin.

Hello, sorry for my English is bad. I want ask, why I can’t connect to database with plugin from GitHub - KhArtNJava/MySQLConnectorUE4Plugin: MySQL Database Connector Plugin for Unreal Engine 4
I test connection with Navicat and my databasenin my domain is work fine.
But in unreal this error shown.
Error : MySQLInitConnection: Failed to connect database
Error : MySQLCloseConnection: Connection is valid but Server does no respond

I wanna make small simple database connection for my task.

hello, have you find a solution ? I have the same probleme