Nginx 502 Error after restart can't find source of issue

Hello!

I hope someone can help me with this issue. I’ve seen a lot of similar issues on this board but nothing has been able to help me so far.

The server is used to generate data feeds and read/write data to shopify. There were issues with feeds being generated so I power cycled the server. Since then I get the generic 502 error message on my web browser. I then rolled back to a week old back up and that didn’t fix anything.

Here is what the Nginx error log looks like:

2020/12/08 12:26:49 [error] 1567#0: *8 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 104.32.213.164, server: t.mydomain.com, request: "GET / HTTP/1.1", upstream: "http://unix:/var/run/mydomain.sock:/", host: "t.mydomain.com"
2020/12/08 12:26:50 [error] 1567#0: *8 connect() to unix:/var/run/mydomain.sock failed (111: Connection refused) while connecting to upstream, client: 104.32.213.164, server: t.mydomain.com, request: "GET /favicon.ico HTTP/1.1", upstream: "http://unix:/var/run/mydomain.sock:/favicon.ico", host: "t.mydomain.com", referrer: "https://t.mydomain.com/"
2020/12/08 12:42:24 [error] 1624#0: *1 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 13.56.215.207, server: t.mydomain.com, request: "GET / HTTP/1.1", upstream: "http://unix:/var/run/mobovidata.sock:/", host: "mydomain.com"

I am also getting this when I run the nginx command

2020/12/07 20:49:24 [emerg] 21240#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2020/12/07 20:49:24 [emerg] 21240#0: bind() to 0.0.0.0:443 failed (98: Address already in use)
2020/12/07 20:49:24 [emerg] 21240#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2020/12/07 20:49:24 [emerg] 21240#0: bind() to 0.0.0.0:443 failed (98: Address already in use)
2020/12/07 20:49:24 [emerg] 21240#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2020/12/07 20:49:24 [emerg] 21240#0: bind() to 0.0.0.0:443 failed (98: Address already in use)
2020/12/07 20:49:24 [emerg] 21240#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2020/12/07 20:49:24 [emerg] 21240#0: bind() to 0.0.0.0:443 failed (98: Address already in use)
2020/12/07 20:49:24 [emerg] 21240#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2020/12/07 20:49:24 [emerg] 21240#0: bind() to 0.0.0.0:443 failed (98: Address already in use)

I know nothing about this stuff but what I have been able to gather is that the issue might be with gunicorn not starting correctly. None of the config files were touched, we just did a power cycle.

Can anyone help? Please let me know if you need any more log or conf details.

THANK YOU!