Get input textfield from gui not working

Hello, I created a simple gui with a text input and a button that calls a procedure to retrieve the text that was entered in the text input and send it by message to the player.

But in the procedure, I use the correct block to retrieve it, but in-game it only shows me that it's empty.

Whereas when I use the block to set something in the text field, it works. But to retrieve it, no.