Troubleshooting: Units no longer available or and have no lessons within them.
Anyone know what the problem here is, I have units that are no longer working. They no longer show a progression bar:
Plus if I click on them, they show an empty box where the lessons should be, and if I click on the "re-enforce" button, it takes me back to the page with the unit tree.
Any help appreciated, including how to let the tech gurus at duolingo know about the problem.