Error while reading 140943FC:SSL

Still running with this problem folks, I’d appreciate any help. This is the error log on the nginx reverse proxy host:

2020/06/24 14:35:16 [error] 17203#17203: *648290 connect() failed (111: Connection refused) while connecting to upstream, client: 162.158.154.x, server: {nextcloudURL}, request: “GET /ocs/v2.php/core/navigation/apps?absolute=true&format=json HTTP/1.1”, upstream: “http://192.168.1.77:8080/ocs/v2.php/core/navigation/apps?absolute=true&format=json”, host: " {nextcloudURL}"

Trying to figure out what that IP address is there - that 162… - that’s not my IP address. That’s Cloudflare IP - could it be I need to enter a regex for the Cloudflare IPs in the trusted_proxy config.php?