PHP Fatal error:  Uncaught Error: Class "Activitypub\Outbox" not found in /srv/htdocs/wp-content/plugins/friends/feed-parsers/class-feed-parser-activitypub.php:2607
Stack trace:
#0 /srv/htdocs/wp-content/plugins/friends/feed-parsers/class-feed-parser-activitypub.php(2457): Friends\Feed_Parser_ActivityPub->queue_unannounce(Object(WP_Post))
#1 /srv/htdocs/wp-content/plugins/friends/feed-parsers/class-feed-parser-activitypub.php(2442): Friends\Feed_Parser_ActivityPub->mastodon_api_unreblog(82539)
#2 /wordpress/core/6.7.2/wp-includes/class-wp-hook.php(324): Friends\Feed_Parser_ActivityPub->ajax_boost('')
#3 /wordpress/core/6.7.2/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters('', Array)
#4 /wordpress/core/6.7.2/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#5 /wordpress/core/6.7.2/wp-admin/admin-ajax.php(192): do_action('wp_ajax_friends...')
#6 {main}
  thrown in /srv/htdocs/wp-content/plugins/friends/feed-parsers/class-feed-parser-activitypub.php on line 2607