Material Change Not Working?

I wrote this code and only the transparency changes material doesn't. Can you please tell me why it isn't? Or what should I do to make it work?

game.Players.PlayerAdded:connect(function(player)
    if player.Name == "Player1" then
        player.Chatted:connect(function(msg)
    if msg == "Test" then
        game.Workspace.Glass.Transparency = 0
        game.Worksapce.NanosStuff.Glass.Material = 1056

    elseif msg == "Test2" then
        game.Workspace.Glass.Transparency = 0.6
        game.Worksapce.Glass.Material = 288
    end
        end)
    end
end)