Please keep the following things in mind:
Unable to connect to localhost:7687, ensure the database is running and that there is a working network connection to it.
I am using Neo4j Causal Cluster with Enterprise Edition
Please format code + Cypher statements with the code
</> icon, it's much easier to read.
Please provide the following information if you ran into a more serious issue:
EXPLAINwith boxes expanded (lower right corner)