I think my host is claiming some kind of DDOS attack, or multiple IPs accessing the server at the same time. It is hard to know if it is just bad hosting or if it is to do with an attack. My other sites with the same host were up, while this website was down.
I remember about 10 years ago, we lost about 140,000 posts because the site was hacked. They didn't like us because of the death of a Palestinian leader, or something like that. (facepalm)
That host said they kept backups, but they didn't when I needed them!