My site displays a 521 error while I was editing by site. And since I use cloudflare, this is what it shows:
(Do note that this is an example img from their article, & projecthoneybot is not my site)
I checked Cloudflare’s support and I saw that it was caused by this (from https://support.cloudflare.com/hc/en-us/articles/200171916-Error-521-Web-server-is-down):
- The origin web server process (e.g. Apache or Nginx) isn’t running, or has crashed. You should check that your web server is running normally. You may also wish to check your server’s error logs to see what caused this. If you are not sure how to do this, or don’t have access to your logs, your host should be able to advise you.*
- Something on the web server or hosting provider’s network is blocking Cloudflare’s requests. Since Cloudflare acts as a reverse proxy, all connections to your server come from a Cloudflare IP. Since the same amount of traffic now comes from a smaller number of IPs, server-side security solutions can mistake the increase in connections from this smaller set of IPs as an attack, when they are legitimate. This leads to some of our IPs being blocked or rate-limited.*
I checked the errors log in Cpanel but saw nothing shown. Can this be fixed?