之前一切正常，但现在firebase似乎无法创建新令牌。我尝试调用await FirebaseMessaging.instance.getToken();，但收到此错误

FLTFirebaseMessaging: An error occurred while calling method Messaging#getToken, errorOrNil => {
    NSLocalizedFailureReason = "Too many server requests.";
}
[VERBOSE-2:ui_dart_state.cc(199)] Unhandled Exception: [firebase_messaging/unknown] An unknown error has occurred.
#0      MethodChannelFirebaseMessaging.getToken (package:firebase_messaging_platform_interface/src/method_channel/method_channel_messaging.dart:226:7)
<asynchronous suspension>
#1      _SignUpState._sendVerificationCode (package:shuri_parent/src/pages/sign_up.dart:343:25)
<asynchronous suspension>
#2      _SignUpState.build.<anonymous closure> (package:shuri_parent/src/pages/sign_up.dart:252:43)
<asynchronous suspension>

我使用的是firebase_messaging: : ^10.0.9
我的应用程序在生产中坏了，我真的需要你们的帮助。
这是我的flutter doctor

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel master, 2.3.0-17.0.pre.121, on Mac OS X 10.15.7 19H1419
    darwin-x64, locale en-RW)
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
[✓] Xcode - develop for iOS and macOS
[✓] Chrome - develop for the web
[✓] Android Studio (version 4.2)
[✓] VS Code (version 1.61.0)
[✓] Connected device (2 available)

• No issues found!

此外，我的应用程序是最近才部署，并没有超过10个用户，其他人似乎无法使用该应用程序，由于这个阻滞剂。您的帮助将不胜感激。