Focus on the pronunciation of up
English definition of “up”
/ʌp/ adjective [after verb] IT
› if a computer, system, etc. is up, it is operating normally: The system is up again, so we have to get back to work. Do you know when the network will be up again? → Compare down adjective
up and running › if a computer, machine, or system is up and running, it is operating normally: The air-conditioning is up and running again after two days of problems.