You need to go on his lightsaber mod (the one THEY made) and download the link in the description (it's a google drive) then put the mod in your game. It doesn't work if you subscribe with steam (only works manually)

here's the link to the lightsaber mod:

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2201599534

MAKE SURE TO DOWNLOAD THE LINK IN THE DESC OF THE MOD

Have a nice day and i hope you fixed your mod.

ty