Can't find where is the issue

[Adri1Nafoutre]

Hello !
Here is my problem :

I'm creating an app for tennis table scoring and when I click on the start button of my app, a notifier opens on the new screen to know who of the 2 players will start the match (The 2 buttons on the notifier are the 2 names of the players).

When I click on the first button of the notifier, my program works perfectly on my phone.
However when I click on the second to show that the second player has to engage the match, a part of the program do not work.

Do you know where is the issue ? (check the 2 screens)

[TIMAI2]

You do not say what does not work ?

Show more of your relevant blocks, and where the app stops working correctly....

[Adri1Nafoutre]

Thanks for your answer, I manages to find the issue on my own and now it works perfectly.
Have a nice day !

[Adri1Nafoutre]

Thanks for your answer, I managed to find the issue on my own and now it works perfectly.
Have a nice day !

[TIMAI2]

Please show your solution , so that others may benefit....

[Adri1Nafoutre]

Actually, in the designer when the background color of the label was green, my program with the blocks was not able to change it into black. (screen 1)

So I just needed to change the label background color to black in the designer to make it works.
(screen 2)

Screen 1 :

Screen 2 :