[401] Authorization failed for all requests after verifying phone number

[gaikwadabhishek]

Hey,
I am new to Signal and I am sort of creating a bot where I will be able to read and send messages.
My whole code is roughly based on signal-cli

Steps:

1. I create SignalServiceAccountManager and call the accountManager.requestSmsVerificationCode()
2. then using the same I call accountManager.verifyAccount() -> from this we receive ACI and PNI
3. Add ACI and PNI to accountManager -> this.accountManager = new SignalServiceAccountManager(conf, new DynamicCredentialsProvider(this.aci, this.pni, this.number, this.password, SignalServiceAddress.DEFAULT_DEVICE_ID), USER_AGENT, getGroupsV2Operations(), DDDConstants.AUTOMATIC_NETWORK_RETRY);
4. Whatever requests I make using this new account manager from step 4 are failing - Exception in thread "main" org.whispersystems.signalservice.api.push.exceptions.AuthorizationFailedException: [401] Authorization failed!

Am I missing anything in the whole process?