How to fix this error with my Bulletime Blueprint?

So I got this Error: Blueprint Runtime Error: “Accessed None trying to read property NewVar”. Node: Branch Graph: EventGraph Function: Execute Ubergraph BP First Person Character Blueprint: BP_FirstPersonCharacter, and i cant find out why. This is my blueprint:

If you look in your blueprint components list, there’s one called ‘Slo Motion’. Use that where you have ‘new var’ and you’ll stand a much better chance.