# Database Management

This section helps you repair sub-flow issues that can affect revision history and connectors.

The **Fix sub-flow's revision** and **Fix sub-flow's connectors** buttons are available in Leapwork Flow, under Settings and then **Database Management**.

* Use **Fix sub-flow's revision** history if you upgraded from an older Leapwork version and sub-flows fail because of revision history changes in the database.

* Use **Fix sub-flow's connectors** if you upgraded from an older Leapwork version and sub-flows show multiple input or output connectors because of revision history changes in the database.

**Note:** Database Management settings would be available if you are logged in as an administrator.  
  
**Note** : The screenshots on this page use the **Elegance Design** , introduced in **2025.3**. If you are using an earlier version, your layout may look different.

**Fix sub-flow's revision history button**: If you upgraded from an older Leapwork version and face flow failures in sub-flows due to revision history changes in the database, this is helpful.

**Fix sub-flow's connectors button**: If you upgraded from an older Leapwork version and face issues with sub-flows showing multiple input/output connectors due to revision history changes in the database, this is helpful.