Google form not showing

i try to use Google Forms plugin from http://michaelwalsh.org/wordpress/wordpress-plugins/wpgform/
inside tabs responsive but the form cannot showing, but i solely put the google form short code in page editor it work. Please advise

the from inside tabs responsive is “place order”
http://cuckoo4u.my/black-hn10/

below the tabs is i put the short code in page