Connection Error

MySQL Error  : Connection Error
Error Number : 2002 php_network_getaddresses: getaddrinfo failed: Name or service not known
Requested URI: http://family.themajdans.com/ourguestbook.php?permalink=true&entry=11427
Date         : Tue, August 21, 2018 02:09:52
IP           : 54.198.41.76
Browser      : CCBot/2.0 (https://commoncrawl.org/faq/)
Referer      : 
PHP Version  : 5.6.37
OS           : Linux
Server       : LiteSpeed
Server Name  : family.themajdans.com