Fatal error: Uncaught Error: Call to undefined function add_action() in /home/user2040093/www/belaquilon.by/wp-content/plugins/wp-views_old/inc/filters/wpv-filter-post-relationship.php:29 Stack trace: #0 /home/user2040093/www/belaquilon.by/wp-content/plugins/wp-views_old/inc/filters/wpv-filter-post-relationship.php(16): WPV_Post_Relationship_Filter::on_load() #1 {main} thrown in /home/user2040093/www/belaquilon.by/wp-content/plugins/wp-views_old/inc/filters/wpv-filter-post-relationship.php on line 29