Warning: mysqli::__construct(): php_network_getaddresses: getaddrinfo for epseducamvinsdev.mysql.db failed: Name or service not known in /home/epseducamv/insc/index.php on line 7

Fatal error: Uncaught mysqli_sql_exception: php_network_getaddresses: getaddrinfo for epseducamvinsdev.mysql.db failed: Name or service not known in /home/epseducamv/insc/index.php:7 Stack trace: #0 /home/epseducamv/insc/index.php(7): mysqli->__construct('epseducamvinsde...', 'epseducamvinsde...', 'insdev2019Y', 'epseducamvinsde...') #1 {main} thrown in /home/epseducamv/insc/index.php on line 7