# Error loading app

**URL:** <https://community.appfarm.io/t/error-loading-app/2469>\
**Category:** Bug reports\
**Created:** [October 15, 2026, 7:13am UTC](https://community.appfarm.io/t/error-loading-app/2469 "2026-10-15T07:13:49Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Jonas](https://dub1.discourse-cdn.com/flex013/user_avatar/community.appfarm.io/jonas/32/17_2.png) [@Jonas](https://community.appfarm.io/u/Jonas)\
**Post date:** [October 15, 2026, 7:13am UTC](https://community.appfarm.io/t/error-loading-app/2469/1 "2026-10-15T07:13:49Z")

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Hello!

We’ve had issues loading our app when upgrading to the last Appfarm update (pushing only small UI changes to prod)

All environments seem to be up and running from Create, and I can open the app overview, but our “main” app refuses to load with error `Error o: Cannot read properties of null (reading 'getDataSourcesMetaForServer')`

Any possibility of understanding what this comes from? Any changes we should be aware of?

 ![image](https://europe1.discourse-cdn.com/flex013/uploads/appfarm/original/2X/7/7f1406c92e294a1ac7abaf717a39da3d1cd56f02.jpeg)

 ![image](https://europe1.discourse-cdn.com/flex013/uploads/appfarm/original/2X/8/8084f3de7abcb596219010b769bd7b019f65cd39.png)

 ![image](https://europe1.discourse-cdn.com/flex013/uploads/appfarm/original/2X/b/bc2eab3d838ececab0445ab0b16a6d2771bbf90d.jpeg)

 ![image](https://europe1.discourse-cdn.com/flex013/uploads/appfarm/original/2X/5/5cbd59800106482973e129f8f17ca7df60f34c30.jpeg)

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<div class="post-metadata">

**Author:** ![tonje](https://dub1.discourse-cdn.com/flex013/user_avatar/community.appfarm.io/tonje/32/119_2.png) [@tonje](https://community.appfarm.io/u/tonje)\
**Post date:** [October 15, 2026, 9:59am UTC](https://community.appfarm.io/t/error-loading-app/2469/2 "2026-10-15T09:59:32Z")

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Hi Jonas, I have sent you a DM on this topic.

Tonje