Fatal error: Uncaught exception 'Exception' with message 'Connect failed: php_network_getaddresses: getaddrinfo failed: Name or service not known' in /var/www/html/include/library/DB.class.php:48 Stack trace: #0 /var/www/html/include/library/DB.class.php(24): DB->__construct() #1 /var/www/html/include/library/DB.class.php(83): DB::Instance() #2 /var/www/html/include/library/DB.class.php(418): DB::EscapeString('city') #3 /var/www/html/include/library/DB.class.php(154): DB::BuildCondition(Array) #4 /var/www/html/include/function/common.php(712): DB::LimitQuery('category', Array) #5 /var/www/html/app.php(32): option_category('city', false, true) #6 /var/www/html/main.php(5): require_once('/var/www/html/a...') #7 {main} thrown in /var/www/html/include/library/DB.class.php on line 48