If you intend to root your device, the recommended approach is as follows:
Uninstall the Bitdefender application from your device.
Root your Android device securely....
réinstaller complétement et à jour qu'après redémarrage du PC, vous aurez "normalement" la possibilité de repersonnaliser un mot de passe pour empêcher l'accès aux "Paramètre" de Bitdefender....
...I have already tried 2x reinstallation and 1x complete uninstallation and then re-installation. Nothing has changed. I can't contact support. Among other things, I use Nord VPN.