AddThis

Language Identifier causing Email not to work

The email button is not working when we pass the ui_language parameter. Why?

This the code that we are using:
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<div class="print_links">
<a class="send_share_link" href="http://www.addthis.com/bookmark.php" style="text-decoration: none;" onclick="return addthis_open(this, '', '[URL]', '[TITLE]');"><fmt:message key="ProductDetailShare" bundle="${storeText}"/></a>
<div class="addthis_toolbox addthis_default_style">
<a href="http://addthis.com/bookmark.php?v=250&amp;username=xa-4c2284e56c435085" class="addthis_button_compact"><fmt:message key="ProductDetailShare" bundle="${storeText}"/></a>
</div>
</div>
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However to implement Multi lingual(ML) feature from AddThis.com we have added following code block , where we are passing language code to AddThis.com through js variable.
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<script type="text/javascript">
var addthis_config = {
ui_language: "<c:out value="${languageCode}" />" //ex: language code for dutch is nl
}
</script>
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Now AddThis widget is coming as per language code passing through above code snippet , but the email link from the widget is not working with BE site although its working for other site.