Javascript issue

Hi,

I am trying to setup your plugin, but have problem with compatibility with Fixed widget plugin (https://ww.wp.xz.cn/plugins/q2w3-fixed-widget/). If I disable your plugin, error is gone and everything works fine:

[14:39:05.115] TypeError: jQuery._getCookie is not a function @ http://site/wp-content/plugins/starbox/themes/business/js/frontend.js?ver=2.0.4:8

I would like to use your plugin, hope that will be possible. Please advise.

https://ww.wp.xz.cn/plugins/starbox/