We deployed Alveo u55c cards, installed TigerGraph 3.6.2, installed Python Virtual Environment, and built the Recommendation Engine from Sources. Finally, when running the demo script (run.sh) for the Synthea use case, then it gives an error -- "Tigergraph user 'user_name' does not exist" --, whereby the user is already created through the GSQL command. Can anyone tell why such user error is occurring?