Object doesn't support property or method 'chosen'

I get this error on all HikaShop pages when using Joomla 3.1.1. I even tested it on a fresh Joomla install without anything else installed except HikaShop, using the default ProStar template. The error pops up when using IE(10) debug mode.

Error: Object doesn't support property or method 'chosen'
<script type="text/javascript">

jQuery(document).ready(function (){
jQuery('select').chosen({
disable_search_threshold : 10,
allow_single_deselect : true
});
});
etc...

This indicates that chosen is missing on your website. Normally it is included in the Protostar template. Are you sure that you flushed all the cache of your website after selecting the template ?

Anyway, you can deactivate the use of chosen in the Display tab of the configuration of HikaShop with the option of the same name.

I installed the blank template into a completely different URL and cleared my cache. But deactivating the "Use Chosen library" fixed the issue. Thanks!