Hi. I have a 10.2kwh bslbatt powerwall connected to a victron quattro 5kwh inverter. When our regional grid just went down, my entire system shut down with the battery showing a red alarm light only. Tried to switch on and off and resertting, no luck. Removed all load from battery turned inverter off, still nothing. Even if I leave the battery off for an hour, when I turn it on again the red alarm light goes on and nothing else happens. Can someone help?