The first time you try to create a Blrt from the Photo Gallery, the app asks you for permission to access your photos. If you did not grant this permission, you'll see a 'This app does not have access to your photos or videos' error.
To fix this, you'll need to give the Blrt app the permission to access your files by following these steps:
- Open your iPhone/iPad's Settings
- Select the Privacy menu
- Select Photos
- Flick the switch next to the Blrt app.
Blrt will now be able to access your Photo Gallery and you can make Blrts from photos saved on your device.