2015/02/19 03:30:16 [error] 8655#0: *54 FastCGI sent in stderr: "PHP message: MOLLIFY ERROR: ServiceException: Empty request=PHP message: MOLLIFY ERROR: {0:{file:/usr/share/nginx/html/backend/include/MollifyBackend.class.php, line:78, function:getService, class:ServiceEnvironment, type:->, args:{0:Request}}, 1:{file:/usr/share/nginx/html/backend/r.php, line:81, function:processRequest, class:MollifyBackend, type:->, args:{0:Request}}}" while reading response header from upstream, client: xxx.xxx.xxx, server: _, request: "GET /backend/r.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "xxx.xxx.xxx"