Warning: mysqli::__construct(): php_network_getaddresses: getaddrinfo for mariadb failed: Name or service not known in /var/www/html/classes/database.class.php on line 9

Fatal error: Uncaught mysqli_sql_exception: php_network_getaddresses: getaddrinfo for mariadb failed: Name or service not known in /var/www/html/classes/database.class.php:9 Stack trace: #0 /var/www/html/classes/database.class.php(9): mysqli->__construct('mariadb', 'bwkdev', Object(SensitiveParameterValue), 'bwkdev') #1 /var/www/html/includes/global.php(14): db::connect('mariadb', 'bwkdev', 'bwkdev', 'bwkdev') #2 /var/www/html/index.php(6): require('/var/www/html/i...') #3 {main} thrown in /var/www/html/classes/database.class.php on line 9