Hello Alex
That should be any kind of CAN-communication failure ( GeneralModule ) to another module.
May be an Auto-Scan with all modules will show other faults with more informations.
GS911 ever describes stored faults with notes like > present or not.
If those faults are currently not present, I would delete and observe them.
Reasons for those enrties are often a lousy battery voltage, so check the state of battery charge
and stability while starting (allways more than 11V).