Maybe need to reinstall?
I'm using hoobs in the box, and while trying to upgrade to hoobs 4 a few mistakes where made. I now see this error message:
E: Unable to locate package hoobsd
E: Unable to locate package hoobs-cli
E: Unable to locate package hoobs-gui
E: Unable to locate package helm

when trying to follow the steps on this support page: https://support.hoobs.org/docs/60e5b9026c19a6a5ca8ead7a