Warning: mysqli::__construct(): php_network_getaddresses: getaddrinfo for database-1.cx3o4e3i5sje.us-east-1.rds.amazonaws.com failed: Name or service not known in /var/www/html/config.php on line 16

Fatal error: Uncaught mysqli_sql_exception: php_network_getaddresses: getaddrinfo for database-1.cx3o4e3i5sje.us-east-1.rds.amazonaws.com failed: Name or service not known in /var/www/html/config.php:16 Stack trace: #0 /var/www/html/config.php(16): mysqli->__construct() #1 /var/www/html/edit.php(2): require('...') #2 {main} thrown in /var/www/html/config.php on line 16