Possible actions:

Ask the system administrator to reset the used account devices (name your username).
Return to {0} from which the previous login was made.
Sign in with {1}.

You can use the system from one computer and one mobile device. The system has the ability to change devices, if something happens with your computer or smartphone. The third time only an administrator can change the device.

You see this message if someone has already used your username and password to login from another device today. This happens in several cases.

You worked with one device today, and then you entered from another

Ask the system administrator to reset the used account devices (name your username).

You changed your browser or cleared cookies

Ask the system administrator to reset the used account devices (name your username).

The password was taken by someone else

Ask the system administrator to reset the used account devices (name your username).
Sign in.
Change the password.

You gave your password to a colleague, and he is working with the system

Ask the system administrator to reset the used account devices (name your username) and create a user account for the colleague.
Sign in.
Change the password.