How can i know the local player's username on a plugin

Hey, developers.
So i am making a plugin that you have the ability to send a feedback.
The question is how can i know the local player’s username even though no clients are connected
to the game.Players Service.

I tried with the game.CreatorID but sometimes the game is not published to Roblox so it will send me this:

Thanks for reading :smiley: