You did a Quick-Install, this is equivalent to Helm Install.
Helm install uses Kubernetes. Kubernetes is made of Pods. Pods are made of Docker Containers.
You have Pods for Rasa X, the Action Server, NLU, Training, etc.
To see your pods, write the command
kubectl get pods --namespace rasa
Once you get the name of the pods, you can individually check their logs to see what went wrong with the command:
kubectl logs <pod_name> --namespace rasa
For example:
kubectl logs rasa-rasa-worker-1a2b3c --namespace rasa
I would encourage you to read more about Kubernetes. You can check the official Rasa Advanced Deployment Workshop.