Fatal error: Out of memory (allocated 4194304) (tried to allocate 8192 bytes) in /www/wwwroot/yinfans.uk/wordpress/wp-includes/functions.php on line 3824

Fatal error: Uncaught Error: Call to undefined function wp_is_serving_rest_request() in /www/wwwroot/yinfans.uk/wordpress/wp-includes/functions.php:3743 Stack trace: #0 /www/wwwroot/yinfans.uk/wordpress/wp-includes/class-wp-fatal-error-handler.php(241): wp_die() #1 /www/wwwroot/yinfans.uk/wordpress/wp-includes/class-wp-fatal-error-handler.php(156): WP_Fatal_Error_Handler->display_default_error_template() #2 /www/wwwroot/yinfans.uk/wordpress/wp-includes/class-wp-fatal-error-handler.php(60): WP_Fatal_Error_Handler->display_error_template() #3 [internal function]: WP_Fatal_Error_Handler->handle() #4 {main} thrown in /www/wwwroot/yinfans.uk/wordpress/wp-includes/functions.php on line 3743