Why does my script say "table: 0xaaaf0a511f845103", when I try to put my username into a table?

Here is my code:

game.Workspace.School.DuelingDoor.DoorPart.Touched:Connect(function(hit) --Touched door to enter dueling 
    if duelingLocked then
        print("Class Locked!")
    else
        local humanoidRootPart = game.Workspace:WaitForChild(hit.Parent.Name):WaitForChild("HumanoidRootPart")
        humanoidRootPart.CFrame = CFrame.new(game.Workspace.School.Dueling.DuelSpawn.Position + Vector3.new(0,3,0))
        table.insert(playersInClass, #playersInClass+1,hit.Parent.Name)
        print(playersInClass)
    end
end)

(This is running on the server) This code is just for testing. I hope somebody can tell me, why it doesn't work. :( - Toby