I am not able to "star" a course as an Instructor

[counterman_megh]

One of our teachers cannot see the courses that she was invited to. When I log in under her I can see them under "more courses" but am not able to highlight the star. I am getting this error code. Ideas?

Ajax Error: 500

{"errors":[{"message":"An error occurred.","error_code":"internal_server_error"}],"error_report_id":"175594435"}