> For the complete documentation index, see [llms.txt](https://helpcenter.xopero.com/xopero-one-en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://helpcenter.xopero.com/xopero-one-en/common-issues/workstations-and-servers/database-backup-ends-with-a-dv0249-unable-to-read-backup-data-error.md).

# Database backup ends with a "DV0249 - Unable to read backup data" error

## Issue

> The database backup task ends with the **"DV0249 – Unable to read backup data"** error message.

***

## **Resolution**

Check and resolve any connection stability issues. If the problem persists, you can increase the number of retry attempts in the **Xopero ONE** application—to do this, simply edit the `MaxRetriesCount` parameter in **config.json** file, changing its default value from **2** to a higher one, such as **20**.

{% hint style="danger" %}
To modify the **config.json** file, **you must stop the Xopero ONE agent service**. After making the necessary changes, restart the service and, if needed, refresh the updates in the **Management Service** panel.
{% endhint %}

{% hint style="info" %}
You can edit `config.json` with a simple text editor (i.e., **Notepad++**).
{% endhint %}

The `config.json` file, by default, is located in the following locations:

1. For **Windows**: `C:\Program Files\Xopero ONE Backup&Recovery Agent`
2. For **Linux**: `/opt/XoperoONEBackupAgent/`

<figure><img src="/files/VKgzxtDfSLYNVbvfYPGJ" alt=""><figcaption></figcaption></figure>