site status

At the beginning I will say I am not an IT specialist
I noticed that the plugin generates the following errors (when it’s off I don’t have them):
1. The REST API request failed due to an error.
Error: cURL error 28: Operation timed out after 10000 milliseconds with 0 bytes received (http_request_failed)
2. A loopback request to your site failed. This means that functions that use loopback are not currently working as expected.
Error: cURL error 28: Operation timed out after 10000 milliseconds with 0 bytes received (http_request_failed)
3. Warning Could not confirm that wp_version_check () is available.

what could be the reason?

Regards Rafa?

The page I need help with: [log in to see the link]