Fatal error with latest version of plugin

Our site is https://oldstonechurch.org

Once logged in, users with /wp-admin access get the WordPress alert screen “There has been a critical error on your website. Please check…”

Digging into the logs, we see the following error (complete with stack trace, yay!):

[02-Sep-2020 13:48:23 UTC] PHP Fatal error: Uncaught Error: Call to undefined function sm_get_screen_ids() in /home/oldstone/public_html/wp-content/plugins/sermon-manager-for-wordpress/sermons.php:560
Stack trace:
#0 /home/oldstone/public_html/wp-includes/class-wp-hook.php(287): SermonManager->{closure}(Object(WP_Screen))
#1 /home/oldstone/public_html/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(”, Array)
#2 /home/oldstone/public_html/wp-includes/plugin.php(478): WP_Hook->do_action(Array)
#3 /home/oldstone/public_html/wp-admin/includes/class-wp-screen.php(421): do_action(‘current_screen’, Object(WP_Screen))
#4 /home/oldstone/public_html/wp-admin/includes/screen.php(240): WP_Screen->set_current_screen()
#5 /home/oldstone/public_html/wp-content/plugins/jetpack/vendor/automattic/jetpack-sync/src/class-sender.php(382): set_current_screen(‘sync’)
#6 /home/oldstone/public_html/wp-content/plugins/jetpack/vendor/automattic/jetpack-sync/src/class-sender.php(475): Automattic\Jetpack\Sync\Sender->get_items_to_send(Object(Automattic\Jetpack\Sync\Que in /home/oldstone/public_html/wp-content/plugins/sermon-manager-for-wordpress/sermons.php on line 560

Please reply with a fix or a time-frame for a bug-fix plugin update. Thanks!

:Benjamin

The page I need help with: [log in to see the link]