Error #023 Cooling system block temperature is too high. Make sure that the room temperature does not exceed 30° C (86° F). If the problem persists, contact Suppor

Error #023 Cooling system block temperature is too high. Make sure that the room temperature does not exceed 30° C (86° F). If the problem persists, contact Support

The room temperature is 20°C.
Nothing is blocking the air output on the machine.
What should I do?