Why am I getting a Blueprint Runtime Error: Accessed None trying to read property Physics Handle from function: 'ExecuteUbergraph_ThirdPersonCharacter' ?

Hello!
I am trying to develop a physics gun in my project and I followed the tutorial that Unreal has on their tutorial page and I keep getting this error:

"Accessed None trying to read
property Physics Handle from function:
‘ExecuteUbergraph_ThirdPersonCharacter’
form node: Release Component in graph:
EventGraph in object:
ThirdPersonCharacter with description:
Accessed None trying to read Property
Physics Handle

This error is preventing me from even testing my Physics Gun. Here is my Blueprint:

Please forgive the horrid organization of everything. Here is the “stated” problem in the blueprint