I keep trying to progress with my trailhead modules but for some reason I am no longer able to create new trailhead playgrounds.  This is a headache as some challenges require you to have a fresh trailhead playground.  When I click on the Create a Trailhead Playground tab, it processes for a while, it then says "Our robots are still working".  Finally, it concludes with the following error (see image): 

I keep trying to progress with my trailhead modules but for some reason I am no longer able to create new trailhead playgrounds.  This is a headache as some challenges require you to have a fresh trailhead playground.  When I click on the Create a Trailhead Playground tab, it processes for a while, it then says "Our robots are still working".  Finally, it concludes with the following error (see image): 

I'm trying to create a new playground, but am unable to do so.  When I try to select create new trailhead playground, nothing happens.  The list doesn't even register that my curser is hovering over the options in the list.  What am I doing wrong?