The already annoying “502 Bad Gateway” error appears, everything on the server is configured correctly, what could be the problem?

Question

Nginx

There is a problem 502 errors on the server everything is configured correctly in logs/nginx_error shows this:
2016/10/06 23:36:10 [crit] 20142#20142: *3774 connect() to unix:///home/mysaite/run /uwsgi.sock failed (13: Permission denied) while connecting to upstream, client: 78.29.26.66, server: saite-te.tk, request: "GET /favicon.ico HTTP/1.1", upstream: "uwsgi:// unix:///home/mysaite/run/uwsgi.sock:", host: "saite-te.tk" ,
2016/10/06 23:50:10 [error] 20142#20142: *3774 connect() to unix:///home/mychelsea/run/uwsgi.sock failed (111: Connection refused) while connecting to upstream, client: 78.29.26.66, server: panfilova-te.tk, request: "GET /favicon.ico HTTP/ 1.1", upstream: "uwsgi://unix:///home/mychelsea/run/uwsgi.sock:", host: "panfilova-te.tk"
what does this error mean?
also constantly pops up in the browser 2 errors:
1) Failed to load resource: the server responded with a status of 502 (Bad Gateway) saite-te.tk/favicon.ico
2) Failed to load resource: the server responded with a status of 502 (Bad Gateway) saite-te.tk
I can't think of what to do anymore, what could be the conflict?

Answer 1

Permission denied
your nginx does not have permission to read the socket uwsgi
chmod-socket=664
stackoverflow.com/questions/22071681/permission-de...

Answer 2

replace it with gunicorn
here is one of the best recipes
and the reason is most likely in the ports