What you want to ask is why the educational administration system of Guizhou University can't get in. The reason for this is the following：

1. Technical problem: The server of the educational administration system is out of order or maintained, which makes it impossible to access it normally. The educational administration system is a complex online system, which needs to be maintained and updated regularly. The system server encounters problems or is undergoing maintenance work, and will temporarily be unable to enter the system.

2. Network connection problem: Sometimes due to unstable network connection or problems, it is impossible to access the educational administration system. Check the network connection to ensure that the connection is normal, and there is no firewall or network restriction to prevent access to the educational administration system.