# Error “Sorry, apps are turned off”: what to do

Source: [https://docs.virtosoftware.com/docs/virto-calendar-web-part/system-requirements-and-installation/error-sorry-apps-are-turned-off-what-to-do/](https://docs.virtosoftware.com/docs/virto-calendar-web-part/system-requirements-and-installation/error-sorry-apps-are-turned-off-what-to-do/)
Product: Virto Calendar Web Part
Updated: 2026-08-12


If you are trying to install the web part on a SharePoint 2019 server, you may encounter the following error when adding it to your site: **"Sorry, apps are turned off. If you know who runs the server, tell them to enable apps."**

![SharePoint 2019 error message reading Sorry, apps are turned off when installing the web part](https://img-docs.virtosoftware.com/wp-content/uploads/2024/10/error_sorry_apps_are_turned_off_what_to_do_1.png)

Here are the possible reasons and solutions for this error:


| Reason | Solution |
|---|---|
| **Apps are not enabled in your farm** | Ensure you have Apps enabled in your SharePoint 2019 farm. |
| **Subscription service is not setup** | The first and most likely problem is that the subscription service is not configured in your farm.Please configure it. |
| **The app management service is not associated with your web application** | Make sure the app management service application is associated with the web application where you want to add the SPFx web part. |
| **App URL is not configured** | If you have not configured the app URLs, please ensure you have given values to App Domain and App Prefix in your App Store settings. |


If the error persists after following the above solutions, please [**create a ticket**](https://www.virtosoftware.com/getsupport/) so our technical support team can analyze the problem.