Get block x y z don't work on crop

https://drive.google.com/file/d/1iGvuM8h3WBzcRS0HjSsp8E70c_nR52F4/view?usp=sharing

I created a harvester as well as this procedure so that it works only when I try it it spits minecraft, after some checking I noticed that the crash was due to the get block highlighted on this screenshot and my second problem is that the get block can be fertilized by bone meal does not work either it is the same problem,
is it a bug or me doing something wrong ?  My workspace-> https://drive.google.com/file/d/128S9qWxmwjwGK8Y0zMSUhv6I2oHkpwj2/view?usp=sharing