Fatal Error after Plugin Update

Our wordpress installation is showing a critical error. This is the error message:

Fatal error: Uncaught Error: Class “Auto_Delete_Post_App” not found in /usr/www/users/unwire/live/wp-content/plugins/auto-delete-post/auto-delete-post.php:42 Stack trace: #0 /usr/www/users/unwire/live/wp-includes/class-wp-hook.php(324): adp_initialize_plugin() #1 /usr/www/users/unwire/live/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #2 /usr/www/users/unwire/live/wp-includes/plugin.php(517): WP_Hook->do_action() #3 /usr/www/users/unwire/live/wp-settings.php(578): do_action() #4 /usr/www/users/unwire/live/wp-config.php(124): require_once(‘/usr/www/users/…’) #5 /usr/www/users/unwire/live/wp-load.php(50): require_once(‘/usr/www/users/…’) #6 /usr/www/users/unwire/live/wp-blog-header.php(13): require_once(‘/usr/www/users/…’) #7 /usr/www/users/unwire/live/index.php(17): require(‘/usr/www/users/…’) #8 {main} thrown in /usr/www/users/unwire/live/wp-content/plugins/auto-delete-post/auto-delete-post.php on line 42

I’ve disabled the plugin and it is working again – any idea of what might be the problem?

WordPress: Current version: 6.8.3

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