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Sri Sai Surya PepakayalaSri Sai Surya Pepakayala 

Trailhead Challenge Error DBZQAMEJ

I'm doing the simple lightning components challenge and have hit this problem in my existing trailhead org and a brand new dev org that I've just created:
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: DBZQAMEJ
SwethaSwetha (Salesforce Developers) 
HI Surya,
The error is similar to GACK ID in salesforce.Most of the times, these go away when you try the challenge in a new playground or keep trying multiple times. If the error still persists, please use the below link to reach out to the Trailhead Support team so that one of the Engineers will get in touch with you and assist further.
Support Link: https://trailhead.salesforce.com/en/help?support=home
 
Please mark this answer as best if it helps so that others facing same issue will find it useful. Thanks