Sorry, but additional devices cannot be added at the moment

We are getting the following error when trying to onboard any new devices into CnMaestro Essentials:

“Sorry, but additional devices cannot be added at the moment. Please contact Cambium support to resolve this.”

I opened a ticket (275113). Was wondering if anyone has seen this and was able to fix it themselves. We have installers stuck on jobs because they can’t onboard appliances