First check that both the parent and child's devices have a stable internet connection, the child device is powered on, and the latest version of Qustodio is installed.
Also verify that the child device is still linked to the correct family account and that Qustodio has the required permissions to run in the background.
If activity still does not update, restart both devices, disable battery optimization or power-saving features that may stop Qustodio from running, and confirm that the device's date and time are set automatically.
If syncing does not resume, contact Qustodio Support with the affected device model, operating system version, and screenshots of the sync issue so they can review your account and identify any device-specific problems.
If support does not reply, you might want to consider posting a complaint on Xolvie in order to bring attention to the issue and try to find a solution.
