Uncaught ReferenceError: __gaTracker is not defined

I am getting the following error message in console when I click outbound links in my website.

Uncaught ReferenceError: __gaTracker is not defined

Why this is happening and how to fix it? I am using universal analytics. Let me know if you need any other info

https://ww.wp.xz.cn/plugins/google-analytics-for-wordpress/