I did not receive sms verification code from Firebase

Question

I am trying to write a code to send the verification code to SMS using Firebase Phone Auth . but i got this error message : E/FirebaseAuth(23757): [SmsRetrieverHelper] SMS verification code request failed: unknown status code: 17093 null error img error img my code

void phoneAuth() async {
 await FirebaseAuth.instance.verifyPhoneNumber(
  phoneNumber: "+966534341376",
  verificationCompleted: verificationComplete,
      verificationFailed: (FirebaseAuthException e) {
        if (e.code == 'invalid-phone-number') {
           print("the phone number not valid");
        } else {
           print(e);
        }
      },
      codeSent: (String verificationId, int? resendToken) 
      async {
      
      },
     
      timeout: const Duration(seconds: 60),
      codeAutoRetrievalTimeout: (String verificationId) {},
      
   );
}

img of function function code img

here button calld function

MaterialButton(
padding: EdgeInsets.symmetric(
   horizontal:
   smolewidt ? width * 0.12 : width * 0.28,vertical: 8),
     shape: RoundedRectangleBorder(borderRadius: n 
      BorderRadius.circular(15.0),
      side: BorderSide(color: Colors.white)),
      color: sharedPref.getBool("mode") ?? "" == true
            ? redColor.primaryColor
            : redColor.primaryColor,
             onPressed: () async {
             phoneAuth();
             },
              child: Text("تسجيل جديد",
              style: TextStyle(
              color: Colors.white,
              fontWeight: FontWeight.bold,
              fontSize: 19,
              fontFamily: "NotoKufiArabic"))),