Fatal error: Uncaught Error: Call to undefined function add_action() in /home/cezarypiatek1990/public_html/testwordpressa/wp-content/plugins/terraclassifieds/inc/cmb2/cmb2-post-search-field/lib/init.php:34 Stack trace: #0 /home/cezarypiatek1990/public_html/testwordpressa/wp-content/plugins/terraclassifieds/inc/cmb2/cmb2-post-search-field/lib/init.php(27): CMB2_Post_Search_field->__construct() #1 /home/cezarypiatek1990/public_html/testwordpressa/wp-content/plugins/terraclassifieds/inc/cmb2/cmb2-post-search-field/lib/init.php(380): CMB2_Post_Search_field::get_instance() #2 {main} thrown in /home/cezarypiatek1990/public_html/testwordpressa/wp-content/plugins/terraclassifieds/inc/cmb2/cmb2-post-search-field/lib/init.php on line 34