Hi Rolan,
In order for the Backup to work we need a working connection with Jetpack VAultpress to work correctly.
We can’t access the XML-RPC file. In a few words, Jetpack relies on the?xmlrpc.php?file to connect with our systems. While your site is publicly accessible, we cannot access your site’s XML-RPC file:
<span style=”background-color: rgba(47, 57, 65, 0.2); color: rgb(47, 57, 65); font-size: 14px; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;”>https://cwa.cwops.org/xmlrpc.php?for=jetpack</span>
<span style=”font-size:14px;”><span style=”color:#2f3941;”>Jetpack and other plugins and apps use this file to connect to your site. It must return the following message:</span></span>
<span style=”font-size:14px;”><span style=”color:#2f3941;”>>XML-RPC?server accepts POST requests only.</span></span>
<span style=”font-size:14px;”><span style=”color:#2f3941;”>You can see a working example here https://jetpack.com/xmlrpc.php</span></span>
<span style=”font-size:14px;”><span style=”color:#2f3941;”>Since your site returns a Page Not Found<i>?error?</i>for this page, I would recommend that you check the following:</span></span>
<span style=”font-size:14px;”><span style=”color:#2f3941;”>A) Can you see the /xmlrpc.php file at the root of your WordPress installation when accessing your site via FTP? If you don’t, then please try re-installing WordPress. You can do this by going to the Dashboard -> Upgrades page then clicking the “Reinstall WordPress” button.</span></span>
<span style=”font-size:14px;”><span style=”color:#2f3941;”>B) Do you use any security plugins that may block access to this file? If so, could you try to disable them? You might also want to check your site’s .htaccess file for any rules that might be blocking access to the?xmlrpc.php file.</span></span>
<span style=”font-size:14px;”><span style=”color:#2f3941;”>C) Does your hosting provider block access to this file? If you don’t find any plugin that may block access to the file on your site, I recommend that you get in touch with your host</span></span>:
<span style=”font-size:14px;”><span style=”color:#c5c0b8;”>https://jetpack.com/support/how-to-add-jetpack-ips-allowlist</span></span>
<span style=”font-size:14px;”><span style=”color:#2f3941;”>Once we can access your site’s?xmlrpc.php file, you should be able to connect Jetpack to?https://wordpress.com.If there are any questions about that, please let us know.</span></span>
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After this configuration, you should try to add Server Credentials:
https://jetpack.com/support/adding-credentials-to-jetpack/
I hope that helps.