there was an error constructing the add hotspot transaction?

Hello everyone,
trying to register hotspot HT - M2808 and at the last step in Helium application I get an error
“there was an error constructing the add hotspot transaction”
I tried to register using three different ways to connect to the Internet: Ethernet cable (LAN), wireless on a home router and via a mobile connection from a mobile phone.
The result is always the same …
So my phone recognizes the Heltec device, I can select the internet connection of the device, select the type of antenna, height and location of the device … but after clicking on registration an error occur.

Please try again later, maybe because of the network jam.

If you still have the same problem then, please send your miner name to me via private message.

I’m not able to add my hotspot to the helium app. First it said insufficient funds to assert location. When I repeated the process again it said “it will take a few minutes to complete registration” it has never registered after that. I tried registering multiple times. Name - skinny fleece capybara