Help with blueprint code

I tried to get help in the animation sub but havent recieved any responses maybe someone in here will know? Trying to follow this tutorial and recieved the following error. https://docs.unrealengine.com/latest/INT/Gameplay/HowTo/CharacterMovement/Blueprints/AnimBlueprint_Walk/index.html

This error is occurring because you are attempting to access the Player Character when the Player Character could be null. Conduits are special and require the code to be safe ;).

To fix this, simply add a new Variable called ‘IsFalling’ to your Animation Event Graph, and set it with your current implementation. The second step is to change your logic to be: IsFalling->Not->And<-Speed > 0.

Event Graph:
http://puu.sh/uMqcK/903d2eebbd.jpg

Conduit
http://puu.sh/uMqgd/1722afc4aa.png

Worked Perfectly! You are a Miracle worker my friend!