Warning: mysqli_connect(): php_network_getaddresses: getaddrinfo for dmranch-mysql-1 failed: Temporary failure in name resolution in /var/www/html/mysql2i.class.php on line 44

Fatal error: Uncaught mysqli_sql_exception: php_network_getaddresses: getaddrinfo for dmranch-mysql-1 failed: Temporary failure in name resolution in /var/www/html/mysql2i.class.php:44 Stack trace: #0 /var/www/html/mysql2i.class.php(44): mysqli_connect('dmranch-mysql-1', 'DMPoker', Object(SensitiveParameterValue)) #1 /var/www/html/mysql2i.func.php(37): mysql2i::mysql_connect('dmranch-mysql-1', 'DMPoker', 'DMP0k3r', false, 32) #2 /var/www/html/db_connect_DM.inc(9): mysql_connect('dmranch-mysql-1', 'DMPoker', 'DMP0k3r') #3 /var/www/html/template-header-left-css.tpl(15): include('/var/www/html/d...') #4 /var/www/html/welcome.php(13): include('/var/www/html/t...') #5 {main} thrown in /var/www/html/mysql2i.class.php on line 44