S: BoltSecurityError: [SSLCertVerificationError] Connection Failed. Please ensure that your database is listening on the correct host and port and that you have enabled encryption if required. Note that the default encryption setting has changed in Neo4j 4.0. See the docs for more information. Failed to establish encrypted connection. (code 1: Operation not permitted) DEBUG:neo4j.pool:[#0000] _: deactivating address ResolvedIPv4Address(('34.126.64.110', 7687)) DEBUG:neo4j.pool:[#0000] _: table={None: RoutingTable(database=None routers={IPv4Address(('9e86f0c0.databases.neo4j.io', 7687))}, readers={}, writers={}, last_updated_time=517723.375, ttl=0)} DEBUG:neo4j.pool:[#0000] _: failed to fetch routing info from ResolvedIPv4Address(('34.126.64.110', 7687)) DEBUG:neo4j.pool:[#0000] _: deactivating address IPv4Address(('9e86f0c0.databases.neo4j.io', 7687)) DEBUG:neo4j.pool:[#0000] _: table={None: RoutingTable(database=None routers={}, readers={}, writers={}, last_updated_time=517723.375, ttl=0)} ERROR:neo4j.pool:Unable to retrieve routing information Traceback (most recent call last): File "C:\Users\lenovo\OneDrive\Desktop\hctober_2nd_try\devhub\server\venv\Lib\site-packages\langchain_community\graphs\neo4j_graph.py", line 350, in __init__ self._driver.verify_connectivity() File "C:\Users\lenovo\OneDrive\Desktop\hctober_2nd_try\devhub\server\venv\Lib\site-packages\neo4j\_sync\driver.py", line 1067, in verify_connectivity self._get_server_info(session_config) File "C:\Users\lenovo\OneDrive\Desktop\hctober_2nd_try\devhub\server\venv\Lib\site-packages\neo4j\_sync\driver.py", line 1281, in _get_server_info return session._get_server_info() ^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\lenovo\OneDrive\Desktop\hctober_2nd_try\devhub\server\venv\Lib\site-packages\neo4j\_sync\work\session.py", line 172, in _get_server_info self._connect(READ_ACCESS, liveness_check_timeout=0) File "C:\Users\lenovo\OneDrive\Desktop\hctober_2nd_try\devhub\server\venv\Lib\site-packages\neo4j\_sync\work\session.py", line 130, in _connect super()._connect( File "C:\Users\lenovo\OneDrive\Desktop\hctober_2nd_try\devhub\server\venv\Lib\site-packages\neo4j\_sync\work\workspace.py", line 165, in _connect self._pool.update_routing_table( File "C:\Users\lenovo\OneDrive\Desktop\hctober_2nd_try\devhub\server\venv\Lib\site-packages\neo4j\_sync\io\_pool.py", line 802, in update_routing_table raise ServiceUnavailable("Unable to retrieve routing information") neo4j.exceptions.ServiceUnavailable: Unable to retrieve routing information During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\Users\lenovo\OneDrive\Desktop\hctober_2nd_try\devhub\server\server.py", line 3, in app = create_app() ^^^^^^^^^^^^ File "C:\Users\lenovo\OneDrive\Desktop\hctober_2nd_try\devhub\server\app.py", line 31, in create_app from api.urls import register_routes File "C:\Users\lenovo\OneDrive\Desktop\hctober_2nd_try\devhub\server\api\urls.py", line 5, in from api.handlers.query.querymodel import chat,retrieve_chat File "C:\Users\lenovo\OneDrive\Desktop\hctober_2nd_try\devhub\server\api\handlers\query\querymodel.py", line 17, in graph = Neo4jGraph() ^^^^^^^^^^^^ File "C:\Users\lenovo\OneDrive\Desktop\hctober_2nd_try\devhub\server\venv\Lib\site-packages\langchain_community\graphs\neo4j_graph.py", line 352, in __init__ raise ValueError( ValueError: Could not connect to Neo4j database. Please ensure that the url is correct DEBUG:neo4j.pool:[#0000] _: close DEBUG:neo4j.pool:[#0000] _: close DEBUG:neo4j.pool:[#0000] _: close