Fatal error: Uncaught Error: Call to undefined function add_action() in /home/madalin/subdomains/sandbox.deliciousthemes.com/wp-content/plugins/Ultimate_VC_Addons/params/Ultimate_Image_Single.php:40 Stack trace: #0 /home/madalin/subdomains/sandbox.deliciousthemes.com/wp-content/plugins/Ultimate_VC_Addons/params/Ultimate_Image_Single.php(256): Ult_Image_Single->__construct() #1 {main} thrown in /home/madalin/subdomains/sandbox.deliciousthemes.com/wp-content/plugins/Ultimate_VC_Addons/params/Ultimate_Image_Single.php on line 40