Erreur de connexion: 2002 php_network_getaddresses: getaddrinfo failed: Name or service not known

#1 /home/clients/85a5eac7b20b6e260a51555a42e7ed94/web/cms/lib/db.php(24): obj->_error()
#2 /home/clients/85a5eac7b20b6e260a51555a42e7ed94/web/cms/lib/obj.php(168): db->__construct()
#3 /home/clients/85a5eac7b20b6e260a51555a42e7ed94/web/index.php(42): include()