Flow Deform problem!!

 From:  albehany
7837.1 
hi guys,
i try to did this training by Chipp Walters https://youtu.be/vtknjYIQIJI?t=6m10s
but when i try something he did with Flow Deform i get weird result so please anyone can tell me what i did wrong and please see the attach image the result i get. thank you and sorry for bother.