Not sure where the Mac version comes in guildorf…
Anyway the Janstorp folder should contain these;
If this relationship is not the same it will not find the samples or the gui.
Once you have got the folder back to the correct state, use Load… and look for the lofi Audio – the Janstorp.dspreset
It should load correctly with the samples and the GUI.
Next time you come to load Janstorp, you will see it is duplicated but only one will load correctly.