why the function does not activate?

so, I created a script that changes a GUI to show what level a player is at.

game.Players.PlayerAdded:Wait()
function onChanged()
script.Parent.Text = script.Parent.Parent.Parent.Parent.RespawnLocation.Name
end
end

script.Parent.Parent.Parent.Parent.RespawnLocation.Changed:Connect(onChanged())

I said that the text that appeared in the Gui would be the name of the Player's RespawnLocation

my problem is that the function does not activate, even when the RespawnLocation is changed of the player

From what I know you can't use () of the function call in the event parameters. So remove the brackets so it's like this:

game.Players.PlayerAdded:Wait()
function onChanged()
script.Parent.Text = script.Parent.Parent.Parent.Parent.RespawnLocation.Name
end
end

script.Parent.Parent.Parent.Parent.RespawnLocation.Changed:Connect(onChanged) -- removed ()