1. Application not updated: Due to technical problems or other reasons, Betta TV application may have problems such as flashback and jamming, and if the server is attacked, it may also cause the application to crash. At this point, it is best to uninstall the old application or update the application.

2. The application was taken off the shelf: It is possible that Yu Dou stopped supporting the TV version of the application, or the application was taken off the shelf for other reasons. In this case, you can search for other real-time applications or find them on the Yu Dou website.

3. System update: System update may cause application problems, and system administrators may need to update TV programs or use them for troubleshooting and recovery.