Fatal error: Uncaught Error: Using $this when not in object context in /usr/local/www/wordpress/wp-content/plugins/yet-another-related-posts-plugin/includes/template_thumbnails.php:11 Stack trace: #0 {main} thrown in /usr/local/www/wordpress/wp-content/plugins/yet-another-related-posts-plugin/includes/template_thumbnails.php on line 11