Follow these simple steps and your service should be cleaned of any useless addons you don’t use anymore:
- Go to your gamepanel & stop your server
- Navigate to File Management on the game panel: (deleting large folders on the game panel is faster than SFTP)
- Right click and delete the steam_cache/ folder
- Open the garrysmod/ folder
- Now delete the cache/ folder
- Start your server and wait for your addons to re-download
Hopefully your server should now have a ton of free space that you didn’t use in your workshop collection!