I received the following notification from WordPress on my email address (attached below).
WordPress encountered an error in one of your plugins, Jetpack by WordPress.com.
First, visit your site and check for visible problems. Then visit the page where the error was identified (/wp-admin/update.php?action=update-selected&plugins=wp-asset-clean-up%2Fwpacu.php%2Ccookie-law-info%2Fcookie-law-info.php%2Cjetpack%2Fjetpack.php%2Cthe-events-calendar%2Fthe-events-calendar.php%2Cwoocommerce%2Fwoocommerce.php%2Cwordpress-seo%2Fwp-seo.php&_wpnonce=c54e0c5dbe) and look again for visible issues.
Please ask your hosting provider for help investigating this further.
If the site is not functional, and you cannot access the admin panel, as usual, WordPress now has a "recovery mode." This mode allows you to access the admin panel to investigate the problem securely.
/wp-login.php?action=enter_recovery_mode
This link will expire in 1 day to keep the site safe. Don't worry, if the error occurs again after this connection times out, you will receive a new one by email.
Details of the error
Error type E_ERROR was caused on line 270 of the file /public_html/wp-content/plugins/jetpack/vendor/automattic/jetpack-sync/src/Listener.php. Message of the error: Uncaught Error: Class 'Automattic\Jetpack\Roles' not found in /public_html/wp-content/plugins/jetpack/vendor/automattic/jetpack-sync/src/Listener.php:270
Stack trace:
#0 /public_html/wp-content/plugins/jetpack/vendor/automattic/jetpack-sync/src/Listener.php(239): Automattic\Jetpack\Sync\Listener->get_actor('jetpack_plugins...', Array)
#1 /public_html/wp-content/plugins/jetpack/vendor/automattic/jetpack-sync/src/Listener.php(114): Automattic\Jetpack\Sync\Listener->enqueue_action('jetpack_plugins...', Array, Object(Automattic\Jetpack\Sync\Queue))
#2 /public_html/wp-includes/class-wp-hook.php(286): Automattic\Jetpack\Sync\Listener->action_handler(Array, Array)
#3 /public_html/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters('', Array)
#4 /public_html/wp-includes/plugin.php(465): WP_Ho
