I have a notification on a Wordpress site that is part of the site health status thingamybob. It reads: Site Health Status The site health check shows critical information about your WordPress configuration and items that require your attention. 1 critical issue A PHP session was created by a session_start() function call. This interferes with REST API and loopback requests. The session should be closed by session_write_close() before making any HTTP requests. Does anyone have any idea what this means in English (the kind of English a small child would understand)?