Anybody know how to clear these

I had a comms failure again today and upon rebooting the AIO it said battery was 0.0% so I came upstairs to check and ran into this.


What I had done was held power switch for 5s on AIO unit and then flipped the grey breaker in the gateway and left it for a bit like I did before then powered it back up.
So I went downstairs and done the power switch on the AIO only this time and that seemed to kick the battery back on but I got a scare coming back up to that lol
Stupid comms errors.
So now it seems to be all back online properly despite that hiccup

But I can't seem to figure out how to make the red circle go away
