Change your course's end date to allow the due date you require. Review the Canvas Guide to extend the end date for your course
Section dates override course dates in Canvas. You may also need to extend the section's end date. Review the Canvas Guide for changing section dates
If you are changing dates for a specific student or students to resolve an incomplete, review the KB article on opening a closed course for a student
Check the Canvas Status page to see if an outage has occurred
Service is currently unavailable. Try again later. internal_server_error
SpeedGrader will not move to a previous test; or, if SpeedGrader will move to a previous test, it will not move forward again