skyburgerstudio

I’ve got the same problem too!

(index):640 Uncaught TypeError: form_container.submit(...).validate is not a function
    at HTMLDocument.<anonymous> ((index):640)
    at i (jquery.js?ver=1.12.4-wp:2)
    at Object.add [as done] (jquery.js?ver=1.12.4-wp:2)
    at n.fn.init.n.fn.ready (jquery.js?ver=1.12.4-wp:2)
    at (index):636