While trying to join a "Narwhal Move Up Schoology Course" for Narwhals, getting "unexpected error message".

While trying to join a "Narwhal Move Up Schoology Course" for Narwhals, getting "unexpected error message".
Hi Nihal,
Thank you for reaching out in the Schoology Community!
Please review this following Help Guide to determine if any of the issues are the cause of the unexpected error.
If the issue continues to persist after reviewing the Help Guide, please submit a ticket to Support with this information listed in this article.
Best,
Nina Lewis
Community Communications Specialist
Schoology | A PowerSchool Unified Classroom Product