Most of Cloudflare IPs are not reachable

Hello!

I have got dedicated server, running many websites. Many of them using Cloudflare. Few days ago some of them become unavailable (Cloudflare throws error 522, saying Host Error). So i checked list of IP range (https://www.cloudflare.com/ips/) and found that i got 100% packet lost on pinging most of them:
103.31.4.0
131.0.72.0
141.101.64.0
162.158.0.0
173.245.48.0
188.114.96.0
190.93.240.0
197.234.240.0
198.41.128.0

I have checked those addresses from my work, my home and my cell phone network and everywhere i got 100% packet loss.

Please, help.

Could you simplify? Is your issue resolved?

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