Qiskit Getting Started - No repsonse to job = backend.run(transpile(qc, backend=backend), shots=1024) and then error on retrieve_job

Question

Stepping through the Qiskit Getting Started steps, I run the step:

run job on real hardware

job = backend.run(transpile(qc, backend=backend), shots=1024)

and get nothing back. So, I then run the next step

or retrieve previously-run job

job = backend.retrieve_job('6101be0fab2460c9c6a3e42e') # your job id here

and receive this error (see image). How do I do the Getting Started steps without having this error?

I tried the run step and expected some sort of response, but none happened. I tried the retrieve step and the error happened.