> ## Documentation Index > Fetch the complete documentation index at: https://julius.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # Data Connectors Error Log > A document of potential errors when connecting data sources to Julius, with context and suggested resolutions. **Please note**: If you're running into an error that isn't on this document yet, reach out to us at [team@julius.ai](mailto:team@julius.ai). *** ## Postgres Errors: | Error Message | Error Code | Root Cause | Fix | | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :--------- | :------------------------------------------------------------------------------------------------ | :----------------------------------------------------------------------------- | | `Initializing connection. Internal service error while initializing the connector. Please retry.` | 5432 | Password authentication failure. | Correct Password and retry | | `Error initializing connector: ['Failed to initialize connector: {"error":"Error executing connector init code: could not translate host name \\\\ to address: Name or service not known\n","message":"Connector initialization failed"}']` | 3001 | Connection failed | Correct Host and retry | | `Initializing connection. Connection test was cancelled.` | 54321 | Network: Cannot reach the server | Check ssl/firewall and retry | | `Error initializing connector: ['Failed to initialize connector: {"error":"Error executing connector init code: connection to server at \"localhost\" (127.0.0.1), port 5432 failed` | 5432 | Network: Cannot reach the server | Use a real hostname(not localhost) and retry | | `Error: Unrecognized configuration parameter` | n/a | PostgreSQL: Connection failed | Incompatible postgres versions, ensure you are actually connecting to postgres | | `{"error": "Error initializing connector: [\"Error connecting to Porcupine: HTTPConnectionPool(host='localhost', port=54321): Read timed out.` | 54321 | Network: Cannot reach the server | Check ssl/firewall and retry | | `Error initializing connector: ['Failed to initialize connector: {"error":"Error executing connector init code: connection to server at \"\", port failed: server closed the connection unexpectedly` | 1433 | Database: Connection failed | Check why database keeps failing | | `Error initializing connector: ['Failed to initialize connector: {"error":"Error executing connector init code: connection to server at \"\" (), port 5432 failed: error received from server in SCRAM exchange: Wrong password\n","message":"Connector initialization failed"}']` | 5432 | Connection failed | Correct Password | | `Connection test failed. Please check your credentials and permissions.` | n/a | not identified yet | Check ssl/firewall and retry | | `Invalid request - missing required fields,` | n/a | Improper fields | Check input fields, ensure all fields are filled out, and retry | | `Error:[DATA_CONNECTOR_STREAMING_ENABLE_CONNECTOR_EXCEPTION] Exception in streaming enable: 424 GET` | 424 | Your sandbox is currently unavailable. Please try again in a few moments or restart your sandbox. | Restart your sandbox and try again | *** ## BigQuery Errors: | Error Message | Error Code | Root Cause | Fix | | :--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :--------- | :--------------------------------- | :---------------------------------------------------------------------------------- | | `Extra data: line 1 column 7 (char 6)` | n/a | Malformed input | Double check input service-account-json and fix malformed errors | | `Error initializing connector: ['Failed to initialize connector: {"error":"Error executing connector init code: Expecting value: line 1 column 1 (char 0)","message":"Connector initialization failed"}']` | n/a | Connection failed | Double check input service-account-json and fix malformed errors | | `BigQuery Error: 403 Access Denied: Table .INFORMATION_SCHEMA.TABLES: User does not have permission to query table` | 403 | BigQuery: Insufficient permissions | Lacking permissions to query your tables, please grant proper permissions and retry | *** ## Snowflake Errors: | Error Message | Error Code | Root Cause | Fix | | :---------------------------------------------------------------------------------------------------------------------------------------------- | :--------- | :------------------------------------------------ | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `Exception during connection test: Error initializing connector: ['250001 (08001): Failed to connect to DB. Contact your account administrator` | 250001 | Network or firewall blocking the connection | Check your firewall and network configuration. See Snowflake's connectivity troubleshooting docs: [https://docs.snowflake.com/en/user-guide/client-connectivity-troubleshooting/error-messages](https://docs.snowflake.com/en/user-guide/client-connectivity-troubleshooting/error-messages) | | `An unknown error occurred during the connection test` | n/a | Too much data being sent at once | Connect to smaller data sources | | `No Active Warehouse selected on snowflake` | n/a | No Active Warehouse selected on snowflake | Select active warehouse on Snowflake | | `Connection test failed. Please check your credentials and permissions.` | 250003 | Snowflake Account not found | Correct snowflake host and username and retry | | `Connection test failed. Please check your credentials and permissions.` | 250001 | Could be many things, usually ssl/firewall issues | See docs here: [https://docs.snowflake.com/en/user-guide/client-connectivity-troubleshooting/error-messages](https://docs.snowflake.com/en/user-guide/client-connectivity-troubleshooting/error-messages). Check your ssl and security configuration/firewall then retry | *** ## Supabase Errors: | Error Message | Error Code | Root Cause | Fix | | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :--------- | :--------------------------------------- | :-------------------------------- | | `Connection Pooler Required /Not Found` | n/a | Connection failed | Check username and password | | `Error initializing connector: ['Failed to initialize connector: {"error":"Error executing connector init code: connection to server at \"\" (), port 5432 failed: SSL connection has been closed unexpectedly\n","message":"Connector initialization failed"}']` | 5432 | Security: SSL certificate error | SSL issue or database instability | | `Error initializing connector: ['Failed to initialize connector: {"error":"Error executing connector init code: connection to server at \"o\" (), port 5432 failed: FATAL: password authentication failed for user` | 5432 | PostgreSQL: Invalid username or password | Fix username or password | *** ## MySQL Errors: | Error Message | Error Code | Root Cause | Fix | | :--------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :--------- | :---------------------------------------- | :--------------------------------------------------------------------------------------------- | | `Streaming enable failed: HTTPSConnectionPool(host='premium-hub-X.spreadsheetsai.app', port=443): Read timed out. (read timeout=10)` | n/a | Network: cannot reach the database server | Verify host, port, and firewall settings, and ensure the database allows external connections. | | `Connection timed out while trying to reach the service. Please check your host, port, and firewall settings, and ensure the service is accessible from your network.` | n/a | Network: Cannot reach the database server | Verify host, port, and that the database allows external connections. | | `Connection test failed. Please check your credentials and permissions.` | n/a | Authentication or network failure | Check username/password and verify database user permissions |