Due to system maintenance, account problems and network problems, it cannot be used, as follows:

1. System maintenance: Ruixiangyi is temporarily unavailable due to system maintenance or upgrade.

2. Account problem: if the account is abnormal, if it is frozen or cancelled, it will lead to the inability to use Ruixiangyi.

3. Network problem: The current unstable network environment or network failure will make it impossible to use Ruixiangyi.