[tried using the dl-ai-learning-platform tag but got: An error occurred: The "dl-ai-learning-platform" tag cannot be used in the "Neural Networks and Deep Learning" category. Please remove it.
Things work a bit different on the new DeepLearning Platform, as opposed to Coursera. The first thing to check is to make sure your “kernel” is actually running. If you leave the notebook open and idle for more than a few minutes, the kernel times out and shuts down. Nothing works after that, including “Save” or “Submit”. The first thing to try is click the “Kernel” menu and try:
Kernel -> Restart and Clear Output
The clearing of the output is a good idea, even though you don’t have to do that. The point is that once you restart the kernel, the runtime state is completely reset, so any variables that were created by previously running the cells no longer exist. So it’s misleading if you don’t clear the output, because then you can’t tell which cells have been rerun since the restart and which ones haven’t. You need to rerun everything after you restart the kernel. So it’s probably a good idea just to do:
Cell -> Run All
or
Cell -> Run All Above
after the kernel restart.
Please try that first and see if that brings back the grader panel. Note that the UI for this is also different. It’s a separate parallel panel on the right side of the window. You can hide it by sliding it closed and then you just see three subtle vertical dots on the right border of the main window. Then you can “grab” those and slide to the left to reopen the grader panel.
On the point about “Pro” status, notice that you don’t see “Pro” on your avatar at the upper right corner. Here’s what it looks like if “Pro” status is actually active:
Sorry, but maybe you are just misinterpreting what that page is telling you. It highlights the one that it wants you to click on. Because that one is going to cost you actual $$$. You have to actually click on the right one and then go through the payment process.
My interpretation is that you are not currently subscribed to Pro. You are on the free plan. Which is probably why the grader is not showing up.
I got access because I’m a mentor for the course, meaning that I don’t actually know how the whole payment process works. But my guess is that even if you get the 7 day free trial on the Pro plan, you still have to give them your payment info, even if they promise not to bill you until the 7 days are over and you don’t sign off the plan.