Twillio – Requested resource Messages.json was not found

can anyone tell me how to resolve this problem.
Java code is like below.

@Service
public class TwilioServiceProvider {
    private static final String ACCOUNT_SID = 
    "ACbfadc94adf90fd6606222566aab3ef4";
    private static final String AUTH_TOKEN = "f***********************";

    public void sendMessage(String mobileNo){
        Twilio.init(ACCOUNT_SID,AUTH_TOKEN);

        Message message = Message.creator(new PhoneNumber(mobileNo),new 
         PhoneNumber("+18325323857"),"Account validation 
         successfull").create();
        System.out.println(message.getAccountSid());

    }
}

I get the following error:

com.twilio.exception.ApiException: 
The requested resource /2010-04-01/Accounts/ACbfadc94adf90fd6606222566aab3ef4/Messages.json was not found