Storm crow form - fatal error

So, i based made an ability called Faerie Dragon Form, based of Storm crow form. So it's should work just like storm crow form, my hero should be able to swtich back to his normal shape at any time.When my hero uses it an fatal error comes up. What the hell !?

Have you set the unit to change to and back?

Ehm, what do you mean?

And did you give the target unit type also the ability?

no, omg lol, im so dumb sometimes :P thanks for help

I personally hate Blizzard for not adding such morph abilitys to the target unit automatically, would save a time and work.
Offtopic: I know how you feel, i feel myself dumb too when i oversee a simple error, mostly syntax errors xD

just check dependency on units , first MUST depend on second