Finally I found out what the problem was!!!!!!!!
I'm sure my code will be fine.So I delete all the comments and the code works again.
We used "IF" in the comment and the compiler will still match it with an "END", which I think is a Buuuuuuuug.
No matter how I modify a comment that starts with an "IF" it doesn't work, even if I put an "END" in the comment.
So I don't think you can comment lines that contain an if in the "MLAPP" file. I'm looking forward to the official fix
So just delete the comments. It works