# 72000: LiveSync connector operation failed Identifier: `livesync_operation_failed` A LiveSync database connector hit an unexpected error while running, so the operation it was attempting did not complete. ## What you should do This is an unexpected internal error rather than something in your data or configuration. If it persists, [contact Ably support](https://ably.com/support) with the connector details and roughly when it occurred. ## Why it happens The LiveSync connector hit an unexpected error while running, so the operation it was attempting did not complete. The underlying failure is attached as the cause. ## What you'll see The error is reported with code 72000 and HTTP status 500. The message describes the operation that failed, with the underlying error attached as the cause.