XAMPP MySQL shutdown unexpectedly , Cannot connect: invalid settings. 

MySQL said:
Cannot connect: invalid settings.
mysqli::real_connect(): (HY000/2002): No connection could be made because the target machine actively refused it.
mysqli::real_connect(): (HY000/2002): No connection could be made because the target machine actively refused it.
phpMyAdmin tried to connect to the MySQL server, and the server rejected the connection. You should check the host, username and password in your configuration and make sure that they correspond to the information given by the administrator of the MySQL server.