Hi y'all, when using this addon I ran into some unusual effects duplicating and staying permanently even after deleting the associated hat / object. Restarting my game fixed it and if restarting wasn't always enough deleting the cache file fixed it as well.

Delete the ‘cache’ folder. In your GarrysMod/garrysmod/ directory, you will see a folder named “cache”.

Hope this helps peeps' running into the same problem.