1. Check whether the WeChat login page is available: You can try to open the WeChat login page and check whether it can be opened normally. If it can't be opened, it may be a network problem. You can check whether the network connection is normal or try to log in with another network connection.
2. Check whether the WeChat account is frozen: The WeChat account may be frozen for violating the rules of the game. You can check whether the WeChat account is frozen. If so, you can try to log in by other means, such as QQ.
3. Check whether the login page of yingtan Bao Fei Mahjong is available: You can try to log in to yingtan Bao Fei Mahjong with other browsers or devices to check whether the login page is available. If you can't use other browsers or devices, it may be caused by network problems.
4. Check whether the WeChat account has been stolen: the WeChat account may have been stolen and you cannot log in. You can check whether the WeChat account has been stolen. If so, you can try to log in by other means, such as QQ.
5. Check whether the WeChat account matches Bao Fei Mahjong: If the WeChat account has been registered with Bao Fei Mahjong, you may not be able to log in because the WeChat account cannot match Bao Fei Mahjong. You can check whether the WeChat account matches Bao Fei Mahjong. If so, you can try to log in by other means, such as QQ.
The above are some possible solutions, which I hope will help you.