How can I reinstall my package while retaining all customizations including the studio?
Normally starting with a fresh install, if you move the database from a previous system (must be the same version), plus the contents of the “custom” directory, you get a working clone.
Of course, if the previous systems wasn’t working, and the problem is in the database or in the custom directory, you get a non-working clone
I tried the wrong way.
Now everything works.