I can't see the damage other players do to the enemy NPC?[SOLVED]

Hi. I hopped into a game with a friend to test it out and I realized that I cannot see the damage that other players do to the enemy NPCs. I'm not quite sure what could be causing this. How can I fix this? Here's the damage script. Thanks!

local tool = script.Parent
local debounce = false
local swingsound = tool:WaitForChild("Swing")
local canattack = tool:WaitForChild("CanAttack")
local UIS = game:GetService('UserInputService')
local plr = game.Players.LocalPlayer
repeat wait() until plr.Character ~= nil
local char
local hum
local idle
local root = plr.Character:WaitForChild("HumanoidRootPart")
local debounce = false
local basiccombatdamage = 10
local function damagemarker()
    local bill = Instance.new("BillboardGui")
    bill.Parent = game.Workspace
    bill.Active = false
    bill.Adornee = char.Head
    bill.AlwaysOnTop = false
    bill.Enabled = true
    bill.Size = UDim2.new(1.2, 0, 1.2, 0)
    bill.StudsOffset = Vector3.new(math.random(-3, 3),math.random(-3, 3), math.random(-3, 3))
    local text = Instance.new("TextLabel", bill)
    text.BackgroundTransparency = 1
    text.Name = "TakeDamage"
    text.Size = UDim2.new(1.2, 0, 1.2, 0)
    text.Font = "Fantasy"
    text.FontSize = "Size48"
    text.Text = "10"
    text.TextColor3 = Color3.new(245, 255, 245)
    text.TextScaled = true
    text.TextStrokeColor3 = Color3.new(245, 245, 235)
    text.TextStrokeTransparency = 0
    text.TextWrapped = true
    for i = 1, 25 do
    wait(0.01)
    text.Position = text.Position - UDim2.new(0, 0, 0.04, 0)
    text.TextTransparency = text.TextTransparency + 0.04
    text.TextStrokeTransparency = text.TextStrokeTransparency + 0.04
    end
end
tool.Equipped:connect(function()
    char = char or plr.Character or plr.CharacterAdded:wait()
    hum = hum or char:WaitForChild("Humanoid")
    idle = idle or hum:LoadAnimation(script.Idle)
    idle:Play()
    idle.Looped = true
end)
tool.Activated:connect(function()
    if debounce == false then -- check if debounce is false
        local ray = Ray.new(root.CFrame.p, root.CFrame.lookVector * 4)
        local hit, hitposition = workspace:FindPartOnRay(ray, char)
        canattack.Value = true
        local swing1animation = script.Parent.Parent.Humanoid:LoadAnimation(script.Punch1)
        local swing2animation = script.Parent.Parent.Humanoid:LoadAnimation(script.Punch2)
        local choose = math.random(1,2)
        if hit then
            local humanoid = hit.Parent:FindFirstChild("Humanoid")
            if not humanoid then
                humanoid = hit.Parent:FindFirstChild("Humanoid")
            end
            if humanoid ~= nil and (root.Position - hitposition).magnitude <= 50 then
                local animspeed = swing1animation:AdjustSpeed(1000)
                swing2animation:AdjustSpeed(1000)
                print(animspeed)
                print()
                if choose == 1 then
                    debounce = true -- set debounce as true
                    swingsound:Play()
                    swing1animation:Play()
                    wait(.1)
                    humanoid:TakeDamage(basiccombatdamage)
                    damagemarker()
                    swingsound:Stop()
                    swing1animation:Stop()
                    debounce = false -- set debounce as false so the code can run again
                elseif choose == 2 then
                    debounce = true -- set debounce as true
                    swingsound:Play()
                    swing2animation:Play()
                    wait(.1)
                    humanoid:TakeDamage(basiccombatdamage)
                    damagemarker()
                    swingsound:Stop()
                    swing2animation:Stop()
                    debounce = false -- set debounce as false so the code can run again
                end
            end
        else
                if choose == 1 then
                    debounce = true -- set debounce as true
                    local swing1animation = script.Parent.Parent.Humanoid:LoadAnimation(script.Punch1)
                    swingsound:Play()
                    swing1animation:Play()
                    wait(.6)
                    swingsound:Stop()
                    swing1animation:Stop()
                    debounce = false -- set debounce as false so the code can run again
                elseif choose == 2 then
                    debounce = true -- set debounce as true
                    local swing2animation = script.Parent.Parent.Humanoid:LoadAnimation(script.Punch2)
                    swingsound:Play()
                    swing2animation:Play()
                    wait(.6)
                    swingsound:Stop()
                    swing2animation:Stop()
                    debounce = false -- set debounce as false so the code can run again
                end
            end
        end
end)
    tool.Deactivated:connect(function()
        canattack.Value = true
    end)

    tool.Unequipped:connect(function()
        idle:Stop()
    end)