as the
>> lang: 'xx'
setting showing, captcha provided by google may have language setting in your html.
>> ttps://developers.google.com/recaptcha/docs/customization#i18n
<script type="text/javascript">
var RecaptchaOptions = {
lang : 'en',
};
</script>
let me know how this item result. (or, already tried and got negative result?)