Double Line on any course page NULL

My website is www.qaans.in and I am using themeforest-11797847-lms-wordpress-theme-elearning-wp, I am facing problem as on the page heading title is appearing twice with the word NULL, can any one help me resolve this issue please.

Hi,

You can contact with your item author @ThimPress hope they will help you.

Thanks!

Thanks, let me try as suggested