Login to panel and then go to 'admin > server > switch program' and then select 'nginx-proxy', 'djbdns' and 'bogofilter'. And then go to 'admin > server > webserver config' and then select 'php53u' and then 'php-fpm_event'.
After that, to make sure, run 'sh /script/fix-all; sh /script/restart-all'.