How to load neo4j graph index directly? It says KeyError: '04b02040-46ad-4893-8c5a-fc74ff1d5e1a'

index = load_graph_from_storage(storage_context, root_id="04b02040-46ad-4893-8c5a-fc74ff1d5e1a") # loads graph with the specified root_id

hi, I am facing this error while using QueryFusionRetriever. Error: TypeError: unsupported operand type(s) for *: 'NoneType' and 'float'

anyone faced similar error? any solution? @WhiteFang_Jr