n8n errors.
46 n8n error messages from the Automation Error Index, each with a cause and a fix. Click through for the full write-up, or search the whole index.
502 Bad Gateway (self-hosted, behind reverse proxy)ConfigAll executions stuck in "Queued" / "Starting soon" and never executedConfigAuthorization failed - please check your credentialsAuthAxiosError: Request failed with status code 429Rate limitBad request, please check your parameters. Input tokens exceed the configured limits.OtherCan't get data for expression - Missing pairedItem dataSchemacannot drop column role of table "user" because other objects depend on itSchemaconnect ECONNREFUSED 127.0.0.1:5432Connectivityconnect ETIMEDOUTTimeoutConnection Lost (workflow editor, behind nginx reverse proxy)ConfigConnection refused on SSH-tunnelled Postgres (127.0.0.1:34827)ConnectivityCredentials could not be decrypted. The likely reason is that a different "encryptionKey"AuthERROR: Unknown top-level item key: pairedItems [item 0]Schemafunction gen_random_uuid() does not existSchemagetaddrinfo EAI_AGAINConnectivitygetaddrinfo ENOTFOUNDConnectivityHTTP Request: Credentials not foundAuthinvalid_grant: Token has been expired or revokedAuthMaximum number of redirects exceededConnectivityMismatching encryption keys. The encryption key in the settings file does not match the N8ConfigMissing encryption key. Worker started without the required N8N_ENCRYPTION_KEYConfign8n may have run out of memory while running this executionOtherNo columns found in Google Sheet. All rows will be appendedConfigNo data found for item-index: "1"OtherNode has no access to credentialAuthPayloadTooLargeError: request entity too largeConfigProblem in node 'HTTP Request' - timeout of 300000ms exceededTimeoutread ECONNRESETConnectivityRequest failed with status code 401AuthRequest failed with status code 403AuthRequest failed with status code 422Schemaself signed certificateConnectivityself-signed certificate in certificate chainConnectivitysocket hang upConnectivitySQLITE_BUSY: database is lockedConfigThe access token is invalid or has expiredAuthThe requested webhook is not registeredConfigThe workflow did not return a responseSchemaThere was an error initializing DB: relation "credentials_entity" does not existSchemaThere was an error running database migrations QueryFailedError: syntax error at or near "SchemaThis model's maximum context length is 65536 tokens. However, you requested 73149 tokens.Otherthis.getWorkflowStaticData is not a functionOtherUnable to connect to Redis after trying to connect for 10sConnectivityUnable to parse range: Sheet1!A:D1:undefined1Schemaunable to verify the first certificateConnectivityWorkflow Webhook Error: Workflow could not be started!Config