PHP8 Compatibility

Upgrading to PHP8 throws fatal errors. Specifically:

PHP Fatal error:  
Uncaught Error: Undefined constant \"WP_Error\" in /nas/content/live/xyzhost/wp-content/plugins/google-news-sitemap/apgnsm.php:174
Stack trace:
#0 /nas/content/live/xyzhost/wp-content/plugins/google-news-sitemap/apgnsm.php(123): apgnsm_generate_sitemap()
#1 /nas/content/live/xyzhost/wp-includes/class-wp-hook.php(305): apgnsm_autobuild(667644)
#2 /nas/content/live/xyzhost/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters(true, Array)
#3 /nas/content/live/xyzhost/wp-includes/plugin.php(470): WP_Hook->do_action(Array)
#4 /nas/content/live/xyzhost/wp-includes/post.php(5148): do_action('publish_page', 667644, Object(WP_Post))
#5 /nas/content/live/xyzhost/wp-includes/post.php(4368): wp_transition_post_status('publish', 'publish', Object(WP_Post))
#6 /nas/content/live/xyzhost/wp-includes/post.php(4570): wp_insert_post(Array, false, true)
#7 /nas/content/live/xyzhost/wp-admin/includes/post.php(423): wp_update_post(Array)
#8 /nas/content/live/xyzhost/wp-admin/post.php(227): edit_post()
#9 {main}
thrown in /nas/content/live/xyzhost/wp-content/plugins/google-news-sitemap/apgnsm.php on line 174

Any chance the plugin can be upgrade to PHP8 compatibility? Thanks!