Recommend several schemes: 1. Log off before logging in, and see if you can open the book. 2. You can clean up the memory of your palm or your mobile phone first. 3. If you can't open it after logging in again, uninstall it first and then reinstall it. 4. If you can't uninstall, try to uninstall by force. 5. The installation software should be downloaded and installed through formal channels. 6. You can call customer service for consultation, and customer service will give you a perfect solution (4008813311). Hope to help you, hope to adopt!