Getting a "Metadata corruption detected" on server screen

[severanced]

I've been having issues with my Unraid server for a while now. Every couple of weeks or so it'll suddenly become unresponsive and I'll have to do a hard shutdown. I tried doing some syslog checking and created another issue for that here:

Unfortunately it looks like the syslogs didn't have anything useful. I randomly checked the monitor on my server and while my server is still responsive I noticed a "metadata corruption" error on the screen. I've included it in the attachments. Any idea what this might be about, if it might be causing the hard stops and how I might fix it?

[JorgeB]

Check filesystem on disk1, run it without -n, but most likely that is a result of all the crashing, not the reason for it