Woocommerce issue after updating.

Hello, new here.

I have some web dev work for a client on a wordpress site I’ve only just went into and I updated his plugins. All went fine apart from the woocommerce plugin.

The products and the like are all still there but the single product page, cart etc. are having issues mainly looks like CSS but some buttons you cannot click etc.

URL example: http://masonicregaliastore.co.uk/shop/knights-templar-black-cotton-gloves/

I couldn’t remember what version of woocommerce they had but I’ll assume it was relatively dated.

My plan is to either create a test site of this on a temp url and work my way down the woocommerce versions until I get back to how it looked or come here and ask for any recommendations?

His site is fairly popular and orders come in thick and fast so he’s having a bit of a shout through the phone.

Any help would be awesome.

Dev