An app won't start

When an app won't start, three things are usually involved: missing permissions, resource limits or an error inside the app itself.

The top 6 fixes

1. 1Restart the app via its launcher entry — transient errors often disappear that way.
2. 2Check in the security monitor whether the app hits resource limits (CPU, RAM).
3. 3Open the app's logs (context menu → Logs) and look for error messages.
4. 4Review permissions: Settings → Permissions — if one is missing, request it explicitly.
5. 5Update the app to the latest version (update center).
6. 6If that is not enough, remove the app and reinstall it — the app storage is preserved.

When nothing helps

If the app is marked as “unmaintained” in the Store, a developer change may be needed — check the app's Store page. Collect the log output and contact the developer or the community with concrete error messages.