Hello Spencer3,
From what I see, that error is saying that when it runs the “Get Blackboard” function, it’s being given a null value which means that the blackboard isn’t set on “Self”, which would be the blueprint that this script is contained in. Can you check to see if the blackboard is set? You can set up a “Is Valid” node with a “Branch” node to avoid this if you plan to set the Blackboard at runtime.