Flowtype.js not working

Permalink
Hi Guys,

i´m dealing with a really unpleasant issue - well at least for me this is more than annoying.
I just can´t get Flowtype.js to work with my Concrete5 Theme.
I tried to implement flowtype before and after the (header_required)-Tag. It´s not working...

Maybe i have to update the jquery-Version, i´m using concrete5.6.3.1. And idea how i can do this, and does it solve my problem with flowtype?

This is the site i´m working on:http://u-vautec.eu/

Thanks in advance!