Hi,
I tried to complete the challenge 3 for this Superbadge but there was an error -

Challenge Not yet complete... here's what's wrong:
There was an unexpected error while verifying this challenge. Usually this is due to some pre-existing configuration or code in the challenge Org. We recommend using a new Developer Edition (DE) to check this challenge. If you're using a new DE and seeing this error, please post to the developer forums and reference error id: QKPZMFSC

I tried to use a new Trailhead Playground and redid from the beginning, still could not complete. Can you advise what I should do?

Thank you.

Hi,
I tried to complete the challenge 3 for this Superbadge but there was an error -

Challenge Not yet complete... here's what's wrong:
There was an unexpected error while verifying this challenge. Usually this is due to some pre-existing configuration or code in the challenge Org. We recommend using a new Developer Edition (DE) to check this challenge. If you're using a new DE and seeing this error, please post to the developer forums and reference error id: QKPZMFSC

I tried to use a new Trailhead Playground and redid from the beginning, still could not complete. Can you advise what I should do?

Thank you.