I can't join some pods

I join one pod, but another I cannot. What could be the reason for this?

```
$ k debug selection-staging-798847b54b-g6nf9
container created, open tty...
bash-5.1# hostname
selection-staging-798847b54b-g6nf9
bash-5.1# exit
exit

$ k debug selection-db-staging-5974f5b9c9-8lqp7
error execute remote, error sending request: Post http://10.147.245.22:10027/api/v1/debug?command=%5B%22bash%22%5D&container=docker%3A%2F%2F84a34bba16510f36e4a3e044cd339eaa89af3c8f360b921fbcad60f548784fac&image=nicolaka%2Fnetshoot%3Alatest: dial tcp 10.147.245.22:10027: connect: connection refused
error: error sending request: Post http://10.147.245.22:10027/api/v1/debug?command=%5B%22bash%22%5D&container=docker%3A%2F%2F84a34bba16510f36e4a3e044cd339eaa89af3c8f360b921fbcad60f548784fac&image=nicolaka%2Fnetshoot%3Alatest: dial tcp 10.147.245.22:10027: connect: connection refused
```

Start by reproducing the two `k debug` commands from the issue and compare the successful pod with the failing database pod. The repository description says this project is no longer maintained and points to `JamesTGrant/kubectl-debug`, so investigation should continue there; done means identifying and documenting why the second debug request is refused.

Written by the indexing model from the issue text.