issues in my WP website

I need to fix issues in WP: - Debug mode is often enabled to gather more details about an error or site failure, but may contain sensitive information which should not be available on a publicly available website. The value, WP_DEBUG_LOG, has been added to this website’s configuration file. This means any errors on the site will be written to a file which is potentially available to normal users. - The REST API is one way WordPress, and other applications, communicate with the server. One example is the block editor screen, which relies on this to display, and save, your posts and pages. The REST API request failed due to an error. Error: [] cURL error 7: Failed to connect to [login to view URL] port 443: Connection refused - Communicating with the WordPress servers is used to check for new versions, and to both install and update WordPress core, themes or plugins. Error Your site is unable to reach [login to view URL] at [login to view URL], and returned the error: cURL error 7: Failed to connect to [login to view URL] port 443: Connection refused - Loopback requests are used to run scheduled events, and are also used by the built-in editors for themes and plugins to verify code stability. The loopback request to your site failed, this means features relying on them are not currently working as expected. Error encountered: (0) cURL error 7: Failed to connect to [login to view URL] port 443: Connection refused