BackendlessException{ code: 'Internal client exception', message: 'null' }

Android
1

When I call the following code Backendless SDK throws an exception:

Backendless.Messaging.subscribe(new AsyncCallback<List<Message>>() {
@Override
public void handleResponse(List<Message> response) {
Log.d(TAG, "Message subscribe handleResponse: " + response);
}
@Override
public void handleFault(BackendlessFault fault) {
Log.d(TAG, "Message subscribe handleResponse: " + fault.getMessage());
}
});

2

Make sure you use don’t use synchronous APIs on the main UI thread
Sync and Async API
If this doesn’t help, please create a minimal, complete and verifiable example