Fatal error: Uncaught Error: Call to undefined function add_action() in /home/xstore/public_html/wp-content/plugins/wp-schema-pro/classes/lib/target-rule/class-bsf-target-rule-fields.php:92 Stack trace: #0 /home/xstore/public_html/wp-content/plugins/wp-schema-pro/classes/lib/target-rule/class-bsf-target-rule-fields.php(80): BSF_Target_Rule_Fields->__construct() #1 /home/xstore/public_html/wp-content/plugins/wp-schema-pro/classes/lib/target-rule/class-bsf-target-rule-fields.php(1526): BSF_Target_Rule_Fields::get_instance() #2 {main} thrown in /home/xstore/public_html/wp-content/plugins/wp-schema-pro/classes/lib/target-rule/class-bsf-target-rule-fields.php on line 92