Here is the code.
local ap= require(game.ServerScriptService.TrelloAPI)
local Board = ap:GetBoard("JaxxSecure")
local List = ap:GetListID("Orders")
script.Parent.MouseButton1Click:connect(function()
ap:AddCard("Order for Table Number: "..script.Parent.Parent.tn.Text.." Order: "..script.Parent.Parent.order.Text.."",List)
script.Parent.Parent.Visible = false
end)

1 comment
Can you tell us what errors/warnings there are?