Why my MouseChanger gui wont load every decal?!?

I made a mousechanger gui with input = the code and i put some codes and it says the error : Image "https://assetgame.roblox.com/asset/?id=120371246" failed to load in "Mouse Cursor": Request failed why is this happening?!? if theres no way to fix it then how to make errors into a textlabel!?! It seems like it only accepts the smaller decals

local mouse = game.Players.LocalPlayer:GetMouse()
local Format = "http://www.roblox.com/asset/?id=##ID##"
local frame = script.Parent
frame:WaitForChild("Play").MouseButton1Click:connect(function()
    local input = tonumber(frame:WaitForChild("Input").Text)
    if input then
        mouse.Icon = Format:gsub("##ID##", tostring(input))
    end
end)
frame:WaitForChild("Stop").MouseButton1Click:connect(function()
    mouse.Icon = "Regular Asset ID"
end)