PyCharm Edu Course Tasks Disappeared

I am taking an online class that is teaching us Python and using PyCharm Edu. Our instructor sent us a course file full of tasks for us to complete. The first few times I loaded the course and worked through some of the tasks without any problems. Now, all of the sudden, the tasks have disappeared. I have redownloaded and loaded the course several times. I have reinstalled PyCharm. I have even installed PyCharm on another computer, but I still get the same result. I join the course and there are no tasks at all. Please help!

Thanks!