Hey there! I ran some more tests on your site, and it seems like there’s a connection issue happening that might be one of the cause of our problem.
In fact, while your site is publicly accessible, we cannot access your site’s XML-RPC file:
https://jornaldosertaope.com.br/xmlrpc.php
This file is used by Jetpack and other plugins and apps to connect to your site. It must return the following message:
XML-RPC server accepts POST requests only.
You can see a working example here:
https://jetpack.me/xmlrpc.php
Since your site returns a 404 error for this page, I would recommend that you check the following:
1) Can you see the /xmlrpc.php file at the root of your WordPress installation when accessing your site via FTP?
2) Do you use any security plugins that may block access to this file? If so, could you try to disable them?
3) 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 would recommend that you get in touch with your host.
Let me know what you find out and we’ll take it from there.
Thanks for sorting this out with me!