An unexpected error occurred while inserting Opportunity records and we couldn't check your work. Make sure Opportunity records can be inserted in this org, and click "Check Challenge" again. If this continues, contact the Trailhead Help team.

Hi @Sagarika Swain

I am from the Trailhead help team. We see that you have completed the 'Customize a Salesforce Object' Project. kindly share the solution that helped you resolve the issue so that it might help the fellow Trailblazer's who are facing the similar issue.

 Thank you! 

 ++TrailheadHelpFollowUp