Error deleted instance

[johnfelipe]

I have this instance http://camara.felipeurrego.com, i want delete it, but i cant, show me error in admin interface, pls give me option
Tnks

[johnfelipe]

502 Bad Gateway

nginx/1.4.6 (Ubuntu)

That is my error

sudo /etc/init.d/nginx restart
sudo /etc/init.d/gunicorn restart

And continue with error for delete an instance with 10000 interventions