2 answers
Hi,I understand that the error itself says to post it in the developer forum however, the information based on the error code is not available from our end. You can always reach out to the trailhead support team as they can only check the actual error behind the error code with their internal tools.https://trailhead.salesforce.com/helphttps://trailhead.salesforce.com/en/help?support=homeTrailhead Help (https://trailhead.salesforce.com/en/help?support=home)can provide assistance for situations where Trailhead does not appear to be functioning correctly. You can reach out to them if this is the case.Let me know if it helps you and close your query by marking it as solved so that it can help others in the future.Regards,Salesforce Support.