Instead of unverified apps, use the established paths provided by the Garena Free Fire Support Center :
Selecciona "Problemas para iniciar sesión y registrarse" y luego "Proceso para recuperación de cuentas". Elige la opción . Completa el Formulario :
Tap the button (usually in the top left or login area). Select "Go to" and enter your recovery email. Enter the verification code Garena sends to your email.
If your account was linked to a platform (Facebook, Google, etc.) but you have a set up, you can fix access directly in the app. Open Free Fire and stay on the login page.