Fatal error: Call to undefined function vc_map() Wordpress Issue

Hey i'm helping a friend set up a charity site using wordpress

everything was okay i logged into everything successfully and 2 days later

Fatal error: Call to undefined function vc_map() in /home2/ainal/public_html/http://ift.tt/28N6k8c on line 373

comes up and i have no idea what do to fix it any ideas any advice

via Chebli Mohamed