Contact Form 7 jQuery Issue

Hi guys and girls,

I have an issue with the plugin above – on submission of a form, the ‘spinning arrows’ show and I get the following error:

Uncaught SyntaxError: Unexpected token : jquery.min.js?ver=3.6:16
d.extend.globalEval jquery.min.js?ver=3.6:16
d.ajaxSetup.converters.text script jquery.min.js?ver=3.6:16
bS jquery.min.js?ver=3.6:16
v jquery.min.js?ver=3.6:16
c jquery.min.js?ver=3.6:16

Any ideas before I dig my way through code?

Thanks in advance.