Error Set Inventory Variable

Hello, I’m having a very strange error that I’ve been trying to figure out for hours.
Error:
PIE: Error: Blueprint Runtime Error: “Accessed None trying to read property As Save Data Level”. Node: Set Content Graph: LoadInventory Function: Load Inventory Blueprint: InventorySystem
PIE: Error: Blueprint Runtime Error: “Accessed None”. Node: Set Content Graph: LoadInventory Function: Load Inventory Blueprint: InventorySystem
PIE: Server logged in

LoadInventory Function: