Why is this happening?

10.06.2024_17.16.54_REC (screenrec.com)

i dont know whats wrong i have done everything and i bet all you are smarter than me so pls help

It means that you have two conflicting blocks that does exactly the same. The block in the top has the same statements as another block that you have somewhere else in you code. Example: if you create a block that says «on A button pressed» and put code in it, makecode won’t Let you make another “on A button pressed. It will instead be greyed out. That’s what happened in your code.