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canonical: en/troubleshooting/errors/ERR-DS_API-BLOCK-UNEVEN_COLUMN_COUNT.html
title: DataLens On-premises error ERR.DS_API.BLOCK.UNEVEN_COLUMN_COUNT
description: >-
  This page describes the Blocks have different column count DataLens
  On-premises error.
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# [DataLens On-premises] Blocks have different column count

`ERR.DS_API.BLOCK.UNEVEN_COLUMN_COUNT`


If an error occurs, please contact Yandex Cloud [support](https://center.yandex.cloud/support). Attach to your message a screenshot of the error and describe the actions that trigger it.