Sd card loop recording not working when full

[myswtest]

Looks like this thread might be a duplicate of this thread (or vice-versa : )

SD card not working?

I have camera set to record events only and it stopped recording a day ago. When I want to view playback, a message pops up, say “no more”. Previously this had worked worked fine. In Advanced settings it says 0 MB available. When I try to format it, it says SD card not available. Suggestions? Also, I read where I can access 14 day cloud storage under Notifications, but there;s nothing there. Where do I find these recordings? Do I have to set something up? Thanks