wordpress - Woocommerce Checkout Uncaught ReferenceError: jQuery is not defined -

for reason checkout page isnt loading jquery anymore , checkout button isn't working.

i'm having console issue in both lines. ideas please? i'm new 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'); }); }); 

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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(); } }); });