Can't uninstall apps anymore

[Frank]

Since I installed the LigeroSmart Botpress app I'm not able to uninstall any app anymore.
I receive always Key ligerosmart-botpress.bot must not contain '.'

Problem is that the app uses botpressBotUsername = 'ligerosmart_botpress.bot', for the app settings in their config file.
I changed it by replacing the dot with an underscore, packaged the app by myself and reinstalled it. But the problem still exists.

Seems that once written keys will never be replaced in the db.