Error program led matrix

Salut!

Can someone help to make the program work ?? :frowning: :frowning: I admit, I do not know programming well !! I took the program on a website, so not mine!

The program is in the attached file…

Thank you!

Led matrix.txt (9.74 KB)

Maybe someone can help you. But you make it so hard to help you. Why do you do this?

Try to imagine this. Imagine you are knowledgeable about building houses. Someone sends you a message and says "I am trying to build a house, but it's not working! Can you help me?" You don't know what kind of house, what materials are being used, you don't even know what is not working for this person, or what they want the house to be like. You want to help, but...