Trouble with loading an hitbox on client

so i’m trying to use RaycastHitboxV4 on a client, but there’s a trouble with it.

local RaycastHitboxV4 = require(game.ReplicatedStorage:WaitForChild(“RaycastHitboxV4”))
local casterParams = RaycastParams.new()
casterParams.FilterDescendantsInstances = {Character,Handle}
casterParams.FilterType = Enum.RaycastFilterType.Blacklist
local Hitbox = RaycastHitboxV4.new(script.Parent.Handle)
Hitbox.RaycastParams = casterParams

this is script i’m running on client. but the ‘Hitbox’ thing won’t load, nothing on error logs (excluding RaycastParams is not valid thingy), tried repeats but still didn’t work. Handle exists btw, it works fine on Server, but it’s not working in Client, and i can’t find some solutions on devforum, if you find one please link me
i’m really stuck on this, and i can’t find solution so i’m finding for help in devforum