Free disk space on this device is short of XXX MB. Secure enough free disk space and then migrate the files again from [Preferences].
There is not enough free disk space on the mobile device.
Take measures such as deleting unnecessary files from the mobile device to secure free disk space, and then migrate the files again from the [Preferences] screen.
To delete unnecessary files, use a file management application.
For details about how to migrate files from the [Preferences] screen, refer to Migrating Files (Android 11 or Later).