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 @Gudditi Jyothika ,

First click setup then open object manager. Second click opportunity then open field dependencies. Third edit field dependencies and make sure every lost and won values are included then save it then check your challenge.

If this doesn't work, check this out: https://trailhead.salesforce.com/trailblazer-community/feed/0D54V00007UrsrzSAB

https://trailhead.salesforce.com/trailblazer-community/feed/0D54V00007UrsrzSAB

https://trailhead.salesforce.com/trailblazer-community/feed/0D54V00007T68W1SAJ