So I'm very very sorry for digging this up; I had this XO installation halted for a while wanted to come back to it.
In the meanwhile the resolution for the error presented on the initial post:
2022-09-22T10:50:18.823Z xo:xo-server ERROR unhandled error event {
error: Error: connect ECONNREFUSED ::1:6379
at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1161:16)
at TCPConnectWrap.callbackTrampoline (node:internal/async_hooks:130:17) {
errno: -111,
code: 'ECONNREFUSED',
syscall: 'connect',
address: '::1',
port: 6379
}
}
Solution:
Edit /etc/redis.conf;
Comment the bind directive;
Save, restart redis, done.