I run a couple Discord bots on my Raspberry Pi, and every couple days it will "crash". My bots will go down and I'm unable to SSH until I unplug it and plug it back in. I noticed this in the syslog around the time of crash, something about "router expired":
It seems to me like maybe my pi is still running but something with the network is not allowing any connections. I could be wrong, I don't know anything about networks. Any suggestions?