InsertService cannot be used to load assets from the client? (Mobile Buttons Issue)

I'm trying to make mobile buttons on my game, but this error keeps coming up (InsertService cannot be used to load assets from the client?) I have no idea what this means. Help?

Here's both of my scripts:

--[[LOCAL SCRIPT]]--

ready = true

local function mobileopenButtonPress()
    game.ReplicatedStorage.RemoteEvents:WaitForChild("MobileClosetOPEN").OnClientEvent:Connect(function(player, tween1, tween2)
    if (game.Workspace.Closet.PrimaryPart.Position - player.Character.HumanoidRootPart.Position).magnitude <= 8 and ready == true then
        ready = false
        tween1:Play()
        tween2:Play()
        wait(.8)
        ready = true
    end
end)

game:GetService("ContextActionService"):BindAction("OpenDoorButton", mobileopenButtonPress, true, Enum.KeyCode.E)
    game:GetService("ContextActionService"):SetPosition("OpenDoorButton", UDim2.new(.72,-25,.2,-25))
    game:GetService("ContextActionService"):SetTitle("OpenDoorButton","OPEN")
end

local function mobilecloseButtonPress()
    game.ReplicatedStorage.RemoteEvents:WaitForChild("MobileClosetCLOSE").OnClientEvent:Connect(function(player, tween1, tween2)
        if (game.Workspace.DoorOfCloset.PrimaryPart.Position - player.Character.HumanoidRootPart.Position).magnitude <= 8 and ready == true then
            ready = false
            tween1:Play()
            tween2:Play()
            wait(.8)
            ready = true
                end
            end)
        game:GetService("ContextActionService"):BindAction("CloseDoorButton", mobilecloseButtonPress, true, Enum.KeyCode.E)
            game:GetService("ContextActionService"):SetPosition("CloseDoorButton", UDim2.new(.72,-25,.2,-25))
            game:GetService("ContextActionService"):SetTitle("CloseDoorButton","CLOSE")
    end

--[[SERVER SCRIPT]]--

wait()
local plr = game.Players.PlayerAdded:Connect(function(plr)

local TS = game:GetService("TweenService")
local tI = TweenInfo.new(1.25, Enum.EasingStyle.Quint, Enum.EasingDirection.Out, 0, false, 0)

game.Workspace:WaitForChild("Closet") 
game.Workspace:WaitForChild("DoorOfCloset")

local d1Open = {CFrame = CFrame.new(93.8, 7.75, -105.3)}
local d2Open = {CFrame = CFrame.new(104.1, 7.75, -105.3)}
local d1Close = {CFrame = CFrame.new(96.6, 7.75, -105.3)}
local d2Close = {CFrame = CFrame.new(101.5, 7.75, -105.3)}
local tween1o = TS:Create(game.Workspace.Closet.Door1,tI,d1Open)
local tween1c = TS:Create(game.Workspace.Closet.Door1,tI,d1Close)
local tween2o = TS:Create(game.Workspace.DoorOfCloset.Door2,tI,d2Open)
local tween2c = TS:Create(game.Workspace.DoorOfCloset.Door2,tI,d2Close)


game.ReplicatedStorage.RemoteEvents:WaitForChild("MobileClosetOPEN"):FireClient(plr, tween1o, tween2o)

game.ReplicatedStorage.RemoteEvents:WaitForChild("MobileClosetCLOSE"):FireClient(plr, tween1c, tween2c)
end)