Zopim气泡隐藏时，屏幕调整大小

我有一个安装了Zopim Live Chat的wordpress网站，但是当我调整浏览器大小时它隐藏了Zopim气泡。我应该在代码中做些什么修改，使其始终可见?

<!--Start of Zopim Live Chat Script-->
<script type="text/javascript">
    window.$zopim || (function(d, s) {
        var z = $zopim = function(c) {
                z._.push(c)
            },
            $ = z.s =
            d.createElement(s),
            e = d.getElementsByTagName(s)[0];
        z.set = function(o) {
            z.set.
            _.push(o)
        };
        z._ = [];
        z.set._ = [];
        $.async = !0;
        $.setAttribute('charset', 'utf-8');
        $.src = '//v2.zopim.com/?zopim_secret_key';
        z.t = +new Date;
        $.
        type = 'text/javascript';
        e.parentNode.insertBefore($, e)
    })(document, 'script');
</script>