522 error came in past 3 days..

Hi there,

Error 522 indicates that Cloudflare is unable to reach the origin web server and the request times out either because the origin web server does not return a SYN+ACK to Cloudflare within 15 seconds or the origin web server doesn’t acknowledge (ACK) Cloudflare’s resource request within 90 seconds after establish the connection.

Here’s a useful related community tip

Take care.