Thanks guys for the answers
But this didn't work
I was working on unity 5.4 and every thing was good
But when I update my old projects to 5.6, the playmaker window disappear, and the project won't run and I get this message:
Error while reading window layout: window #11 is null
No other errors.
Also if I create a new project in 5.6 or 5.6.1 and import playmaker from assets store, the playmaker window won't show event if I change the layout, I can add Fsm component to any object but I can't modify it at all.
I know this looks odd, maybe it have something with Monobehaviour.
Thanks guys for any help