Try the following methods:

1. The mobile phone network is unstable. We can check the mobile phone network by opening the webpage.

2. There is too much memory information. You can click "Settings" and select "Deep Cleaning Storage Space".

3. If the running program is wrong or incompatible with the mobile phone program, you can use the assistant to optimize the background or shut down and restart before logging in.

4. The version is low, so you can upgrade to the latest version to operate again.

5. The running program is destroyed. You can uninstall it and then download a new installation package to install it.