Using Remote events to transfer values but it's giving me an error why?

I'm using remote events to transfer values but it's giving me an error why? I'm trying to get it to work with filtering enabled but it did not work properly why?

Error:

16:17:45.092 - Unable to cast value to Object
16:17:45.093 - Stack Begin
16:17:45.093 - Script 'ServerScriptService.Script', Line 25
16:17:45.093 - Stack End

Local script:

local player = game.Players.LocalPlayer
local mouse = player:GetMouse()
local char = player.Character

local ActiveWeapon = char:FindFirstChild("ActiveWeapon")
--repeat wait() until ActiveWeapon

local rep = game.ReplicatedStorage
local Remotes = rep["Remotes"]

function weld(parent,part0,part1,c0,c1)
    print("Welding")
    local weld = Instance.new("Weld")
    weld.Parent = parent
    weld.Part0 = part0
    weld.Part1 = part1
    weld.C0 = c0
    weld.C1 = c1
    return weld
end

Remotes["WeldItem"].OnClientEvent:connect(function(player, Type, Item)
    print("Equipped: "..Item)
    local axe = game.ReplicatedStorage[Type][Item]:Clone()
    axe.Parent = player["ActiveWeapon"]

    local Handleweld = weld(ActiveWeapon,char["RightLowerArm"],axe.Handle,CFrame.new(0, .35, -1.5, 10, 0, 0, 0, 1, 0, 0, 0, 1),CFrame.new(-1.00324273, 0.013961792, -0.00828075409, -1.38366803e-013, -0.999999881, 4.25688995e-009, 2.4656245e-007, -4.25688951e-009, -1, 1, -1.373172e-013, 2.4656245e-007))
    local Bladeweld = weld(ActiveWeapon,axe.Handle,axe["Axe Blade"],CFrame.new(0, 2.5, 0, 10, 0, 0, 0, 1, 0, 0, 0, 1),CFrame.fromEulerAnglesXYZ(-1.6, 0.013961792, -0.00828075409, -1.38366803e-013, -0.999999881, 4.25688995e-009, 2.4656245e-007, -4.25688951e-009, -1, 1, -1.373172e-013, 2.4656245e-007))
end)

Server script:

local a = "Axes"
local b = "Metal Axe"

Remotes["WeldItem"]:FireClient(a, b)