Connection refused upstream

After self installation. My ghost started with port 2368. I did my nginx configuration after completing i have try to hit the domain url(dev-admin.jabord.com). 502 bad gateway error. I checked my nginx log. I got the below error. Please help me to fix this issue

2020/12/19 07:01:30 [error] 19355#0: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 49.207.138.191, server: dev-admin.jabord.com, request: “GET / HTTP/1.1”, upstream: “http://[::1]:2368/”, host: “dev-admin.jabord.com
2020/12/19 07:01:30 [error] 19355#0: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 49.207.138.191, server: dev-admin.jabord.com, request: “GET / HTTP/1.1”, upstream: “http://127.0.0.1:2368/”, host: “dev-admin.jabord.com
2020/12/19 07:01:31 [error] 19355#0: *1 no live upstreams while connecting to upstream, client: 49.207.138.191, server: dev-admin.jabord.com, request: “GET /favicon.ico HTTP/1.1”, upstream: “http://localhost/favicon.ico”, host: “dev-admin.jabord.com”, referrer: “https://dev-admin.jabord.com/