My php error log is full of these entries. The theme functions has references to get_car_url and it clearly states it needs to be updated. I just paid for this theme and requested twice to have this issue resolved.
Mar 25, 18:56:24
The WC_Cart::get_cart_url function is deprecated since version 2.5. Replace with wc_get_cart_url.
Mar 25, 20:20:26
add_to_cart_fragments is deprecated since version 3.0.0! Use woocommerce_add_to_cart_fragments instead.