3d raycasting game doesn't work

Hi . I am making a 3d ray-casting maze game in App Inventor . I "translated" the code from scratch , because the original tutorials I used were : https://www.youtube.com/watch?v=M1c5TcdITVs
and https://www.youtube.com/watch?v=Vihr-PVjWF4 . This are the blocks :

And I don't know why it doesn't work . I would like any type of help . P.S. for who was helping me in the google genie topic : That one for now is solved

Maybe I should answer this alone , even if I don't know the answer ?

Sorry , I was kidding . This is definitively not solved

If you translate the code to English and post the aia, I could take a look.

Otherwise the only think I can discern is a couple of red X's.

I edited the first post . And now there are not red crosses . But it still doesn't work

Did you upload the aia?
Did you use any extension ( which one and where did you get )?

What is this fraud ? Sorry , App Inventor combined 3 projects . I don't know how . This are the blocks I wanted to post :


And , anyway , it still doesn't work

Still insufficient information to diagnose with out the aia export.