[BUG] Video call not working in live mode production mode (Version 0.3.0)

[luvishq]

Describe the bug
I am trying to Agora for my production app, so I changed the stage from testing to live and follow the below steps :
Whenever the user clicks on the video icon in my app, I first call the cloud function to generate a user token for my userid (let's say user_id1ffdf) .
For getting the token i use this :

var currentUserID = data.user_id;
        var channelName = data.channel_name;
        var expiredTS = 18000;
        const tokenA = RtcTokenBuilder.buildTokenWithUid(APP_ID, APP_CERTIFICATE, "agora_test_poc", currentUserID, RtcRole.PUBLISHER, expiredTS);
        console.log("Token With Integer Number Uid: " + tokenA);
        return ({ 'token': tokenA });
        }

3. Once I get the token I call this

agoraClient = AgoraClient(
  agoraConnectionData: AgoraConnectionData(
      appId: appID,
      channelName: "test_poc",
  ),
  enabledPermission: [
    Permission.camera,
    Permission.microphone,
  ],
);

I tried setting that token which i got for my for authenticated user, but i am getting this error.
Can someone point out if something is wrong in my implementation ?
To Reproduce
Steps to reproduce the behavior:

1. Follow the above steps
2. You should be able to connect to the channel and see the other user
3. I am getting ErrorCode.InvalidToken without passing the token , and if i do pass the token I get Error.TokenExpired

Expected behavior
You should be able to connect to the channel and see the other user

Screenshots
If applicable, add screenshots to help explain your problem.

Smartphone (please complete the following information):

• Device: Samsung
• OS: Android 10
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Flutter doctor -v :

[✓] Flutter (Channel stable, 2.2.3, on macOS 11.4 20F71 darwin-x64, locale en-US)
[!] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
    ! Some Android licenses not accepted.  To resolve this, run: flutter doctor --android-licenses
[✓] Xcode - develop for iOS and macOS
[✓] Chrome - develop for the web
[✓] Android Studio (version 4.1)
[✓] Connected device (2 available)

! Doctor found issues in 1 category.

Additional context
Is there any tutorial for production app setup ?

[luvishq]

Fixed by the suggestion in the slack channel , closing it now :)