https://youtu.be/cV80kd05I0Y
1. Go to this folder on your computer:
PC PATH: C:\\Users\\youruser\\AppData\\Roaming\\Aniom\\MotionDuck Extension\\_ABS
MAC PATH: /Library/Application Support/Aniom/MotionDuck Extension/_ABS
2. Delete every folder and .zip folder that contains the title of the pack that is causing the Duplicate Error Glitch.
3. Restart After Effects and or Premiere Pro if it was open.
4. Download the After Effects version in After Effects and download the Premiere version inside of Premiere.
For PC USERS:
https://youtu.be/odCvPhZVQjo