Another Add to Cart Variable product issue..

Hi All,

first post and I am new to website design. Have been setting up a webshop with woocommerce and very impressed by it all but have hit an issue and spent the last 3-4days trying to resolve it. I want variable products but cant get the add to cart button to show when a variation is selected.

Read up and it seems to be a common problem. Have made sure all information is filled in on the variations. Have tried the Ajax plugin jquery fix. Have tried with a standard theme (Twenty15/14/13). Have deactivated all plugins. I have looked on firefox console and get the following errors for jquery;

TypeError: a.cooke is not a function

<anonymous>
cart-fragments.min.js:1
m.Callbacks/j()
jquery.js:2
m.Callbacks/k.fireWith()
jquery.js:2
.ready()
jquery.js:2
J()
jquery.js:2

&

TypeError: $(…).carouFredSel is not a function
topshop_home_slider()
custom.js:79
<anonymous>
custom.js:45
m.event.dispatch()
jquery.js:4
m.event.add/r.handle()
jquery.js:4

Still no luck. So theres a link below to the website and the variable product. I am abit stumped, and not being an experienced website developer it has made me hit a wall. Thank you in advance!

http://www.dm-developments.com/shop/volkswagen/vw-golf-2/spherical-front-balljoint-g2/