Via de java console krijg ik deze fout op de homepage:

woocommerce.min.js:1 Uncaught TypeError: e(…).placeholder is not a function

jQuery(document).ready(function(e){e(".woocommerce textarea[placeholder], .woocommerce-page textarea[placeholder], .woocommerce input[placeholder], .woocommerce-page input[placeholder]").placeholder();e("select.orderby").change(function(){e(this).closest("form").submit()});e("div.quantity:not(.buttons_added), td.quantity:not(.buttons_added)").addClass("buttons_added").append('<input type="button" value="+" class="plus" />').prepend('<input type="button" value="-" class="minus" />');e("input.qty:not(.product-quantity input.qty)").each(function(){var t=parseFloat(e(this).attr("min"));t&&t>0&&parseFloat(e(this).val())<t&&e(this).val(t)});e(document).on("click",".plus, .minus",function(){var t=e(this).closest(".quantity").find(".qty"),n=parseFloat(t.val()),r=parseFloat(t.attr("max")),i=parseFloat(t.attr("min")),s=t.attr("step");if(!n||n==""||n=="NaN")n=0;if(r==""||r=="NaN")r="";if(i==""||i=="NaN")i=0;if(s=="any"||s==""||s==undefined||parseFloat(s)=="NaN")s=1;e(this).is(".plus")?r&&(r==n||n>r)?t.val(r):t.val(n+parseFloat(s)):i&&(i==n||n<i)?t.val(i):n>0&&t.val(n-parseFloat(s));t.trigger("change")});var t=woocommerce_params.countries.replace(/"/g,'"'),n=e.parseJSON(t);e("select.country_to_state").change(function(){var t=e(this).val(),r=e(this).closest("div").find("#billing_state, #shipping_state, #calc_shipping_state"),i=r.parent(),s=r.attr("name"),o=r.attr("id"),u=r.val(),a=r.attr("placeholder");if(n[t])if(n[t].length==0){r.parent().hide().find(".chzn-container").remove();r.replaceWith('<input type="hidden" class="hidden" name="'+s+'" id="'+o+'" value="" placeholder="'+a+'" />');e("body").trigger("country_to_state_changed",[t,e(this).closest("div")])}else{var f="",l=n[t];for(var c in l)f=f+'<option value="'+c+'">'+l[c]+"</option>";r.parent().show();if(r.is("input")){r.replaceWith('<select name="'+s+'" id="'+o+'" class="state_select" placeholder="'+a+'"></select>');r=e(this).closest("div").find("#billing_state, #shipping_state, #calc_shipping_state")}r.html('<option value="">'+woocommerce_params.i18n_select_state_text+"</option>"+f);r.val(u);e("body").trigger("country_to_state_changed",[t,e(this).closest("div")])}else if(r.is("select")){i.show().find(".chzn-container").remove();r.replaceWith('<input type="text" class="input-text" name="'+s+'" id="'+o+'" placeholder="'+a+'" />');e("body").trigger("country_to_state_changed",[t,e(this).closest("div")])}else if(r.is(".hidden")){i.show().find(".chzn-container").remove();r.replaceWith('<input type="text" class="input-text" name="'+s+'" id="'+o+'" placeholder="'+a+'" />');e("body").trigger("country_to_state_changed",[t,e(this).closest("div")])}e("body").trigger("country_to_state_changing",[t,e(this).closest("div")])})});

bedankt Marcel. Ik heb me echt een slag in de rondte gegoogled en kon niets nuttigs vinden.
Ik heb vanochtend vroeg de 2.6.2 versie geïnstalleerd maar doet helaas niets voor mijn problemen.
Ik ga even zoeken op chosen.js bedankt!

heb ook even een bericht op het forum van woocommerce geplaatst.