Hello, I have been struggling with Cloudflare for a long time.
Every day in the evening for about an hour access to my site is blocked by Cloudflare because error 522 appears.
The problem is fixed when Cloudflare stops or deletes the proxy in DNS settings. In addition, when the connection is made via IP, everything works. Rather, it is not DDOS because in the console under the command netstat nothing indicates this and cloudflare does not detect anything.