I have been working on this superbadge today and all challenges have been checking fine until now, at which point I'm getting the following error.  I created a new playground for this challenge and the only activity I've completed in this playground has been tasks for this superbadge.  All other errors have been related to corrections I've needed to make in challenges along the way, but this one seems to be out of my control.  Can anyone help?

I have been working on this superbadge today and all challenges have been checking fine until now, at which point I'm getting the following error.  I created a new playground for this challenge and the only activity I've completed in this playground has been tasks for this superbadge.  All other errors have been related to corrections I've needed to make in challenges along the way, but this one seems to be out of my control.  Can anyone help?