something went wrong: config_id = None, revision = None, cache_path = /var/tmp/localdb/None: 127.0.0.1:27017: [Errno 111] Connection refused (configured timeouts: socketTimeoutMS: 20000.0ms, connectTimeoutMS: 20000.0ms), Timeout: 0.01s, Topology Description: <TopologyDescription id: 68d5b7d396ff5521bd3565af, topology_type: Single, servers: [<ServerDescription ('127.0.0.1', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('127.0.0.1:27017: [Errno 111] Connection refused (configured timeouts: socketTimeoutMS: 20000.0ms, connectTimeoutMS: 20000.0ms)')>]>