This error message indicates that it is not possible to connect to KOMP. This happens when the power cable is pulled, or KOMP is not connected to Wifi. Please double check with the user that the power cable is inserted in KOMP. If the error message is still present, there is something wrong with the Wifi connection. Restart KOMP to check if that solves the problem.
If that does not work, there is something wrong with the Wifi network. Often, restarting the router helps.