Hi, completely delete it from where you installed it and reinstall it following the included instructions. Please read carefully.
Windows
Copy contents to C:\Users\YOUR USER NAME\AppData\Roaming\Ultima DSP LLC\GuyEngine V2\Expansions
An easy way to find this path is to open GuyEngine, access the preset browser and click "more" and then "Show preset folder." This will take you to your preset folder which is inside the proper directory
MAC
Copy contents to ~/Library/Application Support/Ultima DSP LLC/GuyEngine V2/Expansions
An easy way to find this path is to open GuyEngine, access the preset browser and click "more" and then "Show preset folder." This will take you to your preset folder which is inside the proper directory.
NOTE - You must put ALL of the folders in, even the ones for expansions you don't yet have. These are for compatibility.
Your /GuyEngine V2/Expansions/
should look like this: