Warning: PDO::__construct(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /var/www/akb48/public/sousenkyo2016/member_goods/db.php on line 10

Fatal error: Uncaught exception 'Exception' with message 'DbManager#doConnect() error=SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Name or service not known' in /var/www/akb48/public/sousenkyo2016/member_goods/db.php:13 Stack trace: #0 /var/www/akb48/public/sousenkyo2016/member_goods/db.php(26): DB->doConnect('mysql:host=akb4...', 'akbdbadmin', 'pN6AtDPdjLDW') #1 /var/www/akb48/public/sousenkyo2016/member_goods/model.php(13): DB->DB_QUERY('\n\t\t\tSELECT *\n\t\t...', Array, 1) #2 /var/www/akb48/public/sousenkyo2016/member_goods/index.php(34): Model->getYoutube(66) #3 {main} thrown in /var/www/akb48/public/sousenkyo2016/member_goods/db.php on line 13