PHP errors in log

Hi there, We recently updated our site to WordPress Version 6.7.1. Since then, we’ve had issues editing posts and pages (we simply get a blank white screen). I had a look at our error logs and there are many from Related Posts (see below). Are you able to tell me what is causing these please and how I can fix them? Any help would be much appreciated! Thank you, Kia [08-Jan-2025 14:41:04 UTC] PHP Warning: Attempt to read property “ID” on null in /srv/data/web/vhosts/www.atlasandboots.com/htdocs/wp-content/plugins/related-posts-for-wp-premium/templates/related-post-default.php on line 22 [08-Jan-2025 15:12:39 UTC] PHP Warning: Attempt to read property “ID” on null in /srv/data/web/vhosts/www.atlasandboots.com/htdocs/wp-content/plugins/related-posts-for-wp-premium/templates/related-post-default.php on line 3 [08-Jan-2025 15:12:39 UTC] PHP Warning: Attempt to read property “ID” on null in /srv/data/web/vhosts/www.atlasandboots.com/htdocs/wp-content/plugins/related-posts-for-wp-premium/templates/related-post-default.php on line 22 [08-Jan-2025 15:26:33 UTC] PHP Warning: Attempt to read property “ID” on null in /srv/data/web/vhosts/www.atlasandboots.com/htdocs/wp-content/plugins/related-posts-for-wp-premium/templates/related-post-default.php on line 3 [08-Jan-2025 15:26:33 UTC] PHP Warning: Attempt to read property “ID” on null in /srv/data/web/vhosts/www.atlasandboots.com/htdocs/wp-content/plugins/related-posts-for-wp-premium/templates/related-post-default.php on line 22 [08-Jan-2025 15:40:33 UTC] PHP Warning: Attempt to read property “ID” on null in /srv/data/web/vhosts/www.atlasandboots.com/htdocs/wp-content/plugins/related-posts-for-wp-premium/templates/related-post-default.php on line 3 [08-Jan-2025 15:40:33 UTC] PHP Warning: Attempt to read property “ID” on null in /srv/data/web/vhosts/www.atlasandboots.com/htdocs/wp-content/plugins/related-posts-for-wp-premium/templates/related-post-default.php on line 22 [08-Jan-2025 16:39:07 UTC] PHP Warning: Attempt to read property “ID” on null in /srv/data/web/vhosts/www.atlasandboots.com/htdocs/wp-content/plugins/related-posts-for-wp-premium/templates/related-post-default.php on line 3 [08-Jan-2025 16:39:07 UTC] PHP Warning: Attempt to read property “ID” on null in /srv/data/web/vhosts/www.atlasandboots.com/htdocs/wp-content/plugins/related-posts-for-wp-premium/templates/related-post-default.php on line 22 [08-Jan-2025 16:59:06 UTC] PHP Warning: Attempt to read property “ID” on null in /srv/data/web/vhosts/www.atlasandboots.com/htdocs/wp-content/plugins/related-posts-for-wp-premium/templates/related-post-default.php on line 3 [08-Jan-2025 16:59:06 UTC] PHP Warning: Attempt to read property “ID” on null in /srv/data/web/vhosts/www.atlasandboots.com/htdocs/wp-content/plugins/related-posts-for-wp-premium/templates/related-post-default.php on line 22 [08-Jan-2025 18:23:32 UTC] PHP Warning: Attempt to read property “ID” on null in /srv/data/web/vhosts/www.atlasandboots.com/htdocs/wp-content/plugins/related-posts-for-wp-premium/templates/related-post-default.php on line 3 [08-Jan-2025 18:23:32 UTC] PHP Warning: Attempt to read property “ID” on null in /srv/data/web/vhosts/www.atlasandboots.com/htdocs/wp-content/plugins/related-posts-for-wp-premium/templates/related-post-default.php on line 22 The page I need help with: [ log in to see the link]