The servers outside of China were forced to shut down due to costs. However, the servers inside China are operating normally and have been migrated and will be operating for a long time to come. We apologize for any inconvenience this may have caused you!
The current Android installation address is:http://home.smallos.net:2342/d/1-an-zhuo-you-xi-an-zhuang-bao-xia-zai-di-zhi
Server Migration Instructions
Source: Steam Community (opens in a new tab)