Hi All,

While checking Step 2 of the SuperBadge - App Customization Specialist, I am getting the below 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: TJDDMKJZ

Please note that i am using a new DE. I also tried with my old DE but the issue persists.
Can anybody help what can be the issue here?
 

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: LIWFMHWB