Do you mean that Publii app disappeared after upgrade to macOS Catalina?
The app was there, but the saved sites were not, or downloaded themes, or any of the saved settings. It was like a brand new installation of the Publii app. It’s weird because this didn’t happen to other Softwares like Photoshop or such. I believe it has something to do with the fact that Publii uses the Documents folder by default. Upon upgrading to Mac Catalina, that folder was wiped off. Somehow it’ didn’t save in my iCloud either!
But, is there any way to get everything back to normal by downloading the site from the server, or that’s it, and I have to start all over?
If that’s the case, I believe it would be a good idea to automatically sync a copy of the configurations files to the server along with the site we are uploading.