After following tutorials on installing cf-for-k8s I get to the step to push my first app but it fails.

I get the following error:
"error": "Connection refused - Connection refused - connect(2) for "127.0.0.1" port 8080 (127.0.0.1:8080)"

Can you help me to resolve the issue?
I would like to know more about how I can troubleshoot this situation.
Do you have any tips?

Tutorials:
https://cf-for-k8s.io/docs/
https://www.devopsschool.com/blog/getting-started-with-cloud-foundry-for-kubernetes-using-cf-for-k8s-in-linuxubuntu/

Details:
The netstat command is not showing any connections on port 8080.

Command:
$ cf push test-app -v

Terminal output:
See attachments
Output push test-app.pdf