Text Button in Billboard Gui not working?

Im making a game and I want the users to walk up to characters end a billboard gui will appear telling them to press E. However I want to make this functional with touch but for some reason it's not registering the touch. Here is the code below

for _,npc in pairs(NPCS:GetChildren()) do
        npc.UpperTorso.EToGift.Frame.TextButton.MouseButton1Click:Connect(function()
            if Player.Character and Player.Character:FindFirstChild("HumanoidRootPart") then
                for _, npc in pairs(NPCS:GetChildren()) do
                    if (npc.HumanoidRootPart.Position - Player.Character.HumanoidRootPart.Position).magnitude < 15 then
                        if npc.Enabled.Value and Player.OtherInfo.Backpack.Value > 0 then
                            game.Workspace.Events.DisableNPC:FireServer(npc)
                        end
                    end
                end
            end
        end)
    end