We're sincerely sorry for the issue. Would you please give us more info about your issue via Dingtone-More-Help & About Us-Feedback? Our support team will get back to you as soon as possible. Here we will also keep improving and providing you with better experience.
Dear user, would you please report your issue to us within the APP via "More"->"Help & About Us"->"Feedback or Report an Issue", and also tick off the "Send diagnostic information to Dingtone". We will help to check for you. Thanks!