Cart/Checkout?My account?MY basket all displaying page doesnt exist?

hi all im a newbie to this so please bear with me.

my shop page http://www.thehandcratfedhomeshop.com is displaying that pages dont exist when i click checkout/cart/mybasket.myaccount buttons. What have i done wrong?

advice would be much appreciated!!

https://wordpress.org/plugins/woocommerce/