I can no longer access my grade book. When I click on grades, it flashes for a brief moment and then doesn't load at all. I also can no longer view submitted assignments on Canvas unless I download and open them. This is happening with all my courses and started over a month ago. I am able to grade assignments on speed-grader, but can't see the big picture or all assignments, leave assignment comments on their submissions, or see their grades. I have tried switching browsers from safari to google with the same result. Is anyone else having this problem or does anyone know why this might be happening to me or have any suggestions?