Why does my model not get destroyed?

I am not sure if the remote event called "Delete" is getting called. I am using zblox's grid-placement tutorial.

Here is the Client side of the script:

--Services
local runService = game:GetService("RunService")

--Instances
local player = game.Players.LocalPlayer
local mouse = player:GetMouse()

local DeleteRE = game.ReplicatedStorage.Events.Delete

local obj

--Bools
local deleteToggle = false

--Functions/Events
script.Parent.MouseButton1Click:Connect(function()
    if deleteToggle then
        deleteToggle = false
    else
        deleteToggle = true
    end
end)

mouse.Button1Down:Connect(function()
    if obj then
        DeleteRE:FireServer(obj.Parent)
    end 
end)

runService.RenderStepped:Connect(function()
    if deleteToggle then
        if mouse.Target then
            if mouse.Target == "Primary" then
                obj = mouse.target
                print(obj)
            end
        end
    end
end)

And here is the server-side:

local DeleteRE = game.ReplicatedStorage.Events.Delete

DeleteRE.OnServerEvent:Connect(function(plr, obj)
    if obj.Primary then
        local stats = plr.leaderstats
        local cash = stats.Cash

        cash = cash.Value + obj.Price.Value/2

        obj:Destroy()
    end
end)

Thanks for the help!