Thunderhub missing from App store

Hello, why am I unable to see Thunderhub as an App to install? Has it been removed from Umbrel?

Did you change the git address manually by any chance, or did you delete any folders in the umbrel-apps directory?

No, I have done anything like that, I have used the GUI to add and remove app etc.

This is my second installation of Umbrel after the first one would not work properly, so I had re-flash the memory card for the raspberry pi and start over again about 2 weeks ago.

I am now trying to install the apps I need and am having loads of problems, and now not having Thunderhub is just another thing to add to the list.

Even after updating to latest version of Umbrel, I still do not have Thunderhub in the app store.