Woocommerce Checkout Uncaught ReferenceError: jQuery is not defined

For some reason checkout page isnt loading jquery anymore and my checkout button isn't working.

I'm having this console issue in both lines.
Any ideas please? I'm new with jquery.

jQuery(document).ready(function($) {

$(".cart-main-buttons .update-cart-btn").click(function(ev){

ev.preventDefault();
$(".cart-buttons-hidden input[name='update_cart']").trigger('click');
});

$(".cart-main-buttons .checkout-button").click(function(ev){
ev.preventDefault();
$(".cart-buttons-hidden input[name='proceed']").trigger('click');
});
});

---

jQuery(document).ready(function($){

var $txt = $("#coupon-code-form input[name='coupon_code']");
$("#coupon-code-form").submit(function(ev) {

ev.preventDefault();
if($txt.val().length) {
$(".cart-form input[name='coupon_code']").val( $txt.val() );
$(".cart-form input[name='apply_coupon']").click();

} else { $txt.focus(); }
});
});