Hi @madeincosmos,
Thank you very much for your help.
Problem was with the plugin UpStroke: WooCommerce One Click Upsells.
Solution is add this script to site.
<script>
// fix UpStroke: WooCommerce One Click Upsells (WooFunnels)
if (!String.prototype.startsWith) {
String.prototype.startsWith = function(searchString, position) {
position = position || 0;
return this.indexOf(searchString, position) === position;
};
}
</script>
https://stackoverflow.com/questions/30867172/code-not-running-in-ie-11-works-fine-in-chrome