Hi sravya,
I hope all is well with you.
As our Support Team is diligently working with this concern, we're pleased to inform you that the issue is now fixed and kindly try to retake the assessment after the cooldown timer has passed.
If in case you continue to experience issues with the assessment lab, please make sure to get the following information so that we can more easily investigate:
Title of the Assessment
Lab Instance ID: (That can be found in the Instructions tab of the lab. If you have launched the assessment, this is found in the instructions tab under "Troubleshooting.")
URL (Copy the entire URL of the problematic page and paste it in your response.)
Date/Time you encountered the issue
Description (Explain the primary issue)
If this solves your problem, please indicate “Yes” to the question and the thread will automatically be closed and locked. In case we do not receive a response, the thread will be closed and locked after three business days. Please be advised that after the case is locked, we will no longer be able to respond. If the resolution provided did not resolve the issue, please post a new question.
Warm regards,