your anonym Block return No data. That is because you have no data found.
you can catch this Exeption
you can write your block like so
...... your code
WHEN no_data_found THEN
The usual response to these types of post is this:
MY CAR WON'T START.
The OP provided just as much information about his/her problem that I did about my car.
Also, I suggest you bookmark this link and include it in these types of posts.