[godarmy]

I am confused what went wrong here ..
after I insert code nginx error.
I use this configuration

server {
          error_log /var/log/nginx/vhost-error_log warn;
          listen ipserver:80;
          server_name testing.com www.testing.com;
          access_log /usr/local/apache/domlogs/testing.com-bytes_log bytes_log;
          access_log /usr/local/apache/domlogs/testing.com combined;
          root /home/testing/public_html;
          location /home/testing/public_html/ {
          rewrite ^/home/testing/public_html/((urllist|sitemap_).*\.(xml|txt)(\.gz)?)$ /home/testing/public_html/vbseo_sitemap/vbseo_getsitemap.php?sitemap=$1 last;
          }
          location / {
          try_files $uri @backend;
          }
          location @backend {
          internal;
          proxy_pass http://ipserver:8081;
          include proxy.inc;
          }
          location ~ .*\.(php|jsp|cgi|pl|py)?$ {
          proxy_pass http://ipserver:8081;
          include proxy.inc;
          }
          location ~ .*\.(asp|aspx)?$ {
          deny all;
          }
          location ~ /\.ht {
          deny all;
          }
        }