gunicorn not starting

hello everyone.

not sure why but i get a 502 gateway nginx 1.10 error when i go to my ip. i just uploaded my files to home/django/django_project. i am guessing the problem is from gunicorn because nothing happens when i type the command service gunicorn restart via putty in the commandline

here is my nginx file

[error] 26244#26244: *674 connect() to unix:/home/django/gunicorn.socket failed (111: Connection refused) while connecting to upstream, client: 110.170.170.250, server: _, request: “HEAD http://67.207.87.22:80/PMA2014/ HTTP/1.1”, upstream: “http://unix:/home/django/gunicorn.socket:/PMA2014/”, host: “67.207.87.22” 2017/07/20 12:03:57 [error] 26244#26244: *674 connect() to unix:/home/django/gunicorn.socket failed (111: Connection refused) while connecting to upstream, client: 110.170.170.250, server: _, request: “HEAD http://67.207.87.22:80/PMA2015/ HTTP/1.1”, upstream: “http://unix:/home/django/gunicorn.socket:/PMA2015/”, host: “67.207.87.22” 2017/07/20 12:03:57 [error] 26244#26244: *674 connect() to unix:/home/django/gunicorn.socket failed (111: Connection refused) while connecting to upstream, client: 110.170.170.250, server: _, request: “HEAD http://67.207.87.22:80/PMA2016/ HTTP/1.1”, upstream: “http://unix:/home/django/gunicorn.socket:/PMA2016/”, host: “67.207.87.22” 2017/07/20 12:03:57 [error] 26244#26244: *674 connect() to unix:/home/django/gunicorn.socket failed (111: Connection refused) while connecting to upstream, client: 110.170.170.250, server: _, request: “HEAD http://67.207.87.22:80/PMA2017/ HTTP/1.1”, upstream: “http://unix:/home/django/gunicorn.socket:/PMA2017/”, host: “67.207.87.22” 2017/07/20 12:03:58 [error] 26244#26244: *674 connect() to unix:/home/django/gunicorn.socket failed (111: Connection refused) while connecting to upstream, client:

Would appreciate it if someone could point me to the right direction. Thanks