As the title state, now and again all the extensions that are turned on will turn off and cause a "Component "session" is not registered." then no one can access any part of the site (apart from admin section) until the extensions have been restarted.
How do I find out what is causing the issue and prevent it from happening again?
The error from the server log is;
ERROR 2020-04-11 20:01:15 Igniter\Flame\Exception\SystemException: Component "session" is not registered.
in /public_html/app/system/classes/ComponentManager.php:238
A full extended version can be provided if needed.
The server access log reads;
nn.n.nnn.nn - - [11/Apr/2020:20:00:23 +0100] "POST /order/menus HTTP/1.1" 500 10414 "https://www.#######.co.uk/order/menus" "Mozilla/5.0 (iPhone; CPU iPhone OS 13_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148 LightSpeed [FBAN/MessengerLiteForiOS;FBAV/###.#.#.##.###;FBBV/202164847;FBDV/iPhone11,8;FBMD/iPhone;FBSN/iOS;FBSV/13.3.1;FBSS/2;FBCR/;FBID/phone;FBLC/en_GB;FBOP/0]"