Wordpress Theme (University) problem

Envato Customers Purchases and Subscriptions
1

My Theme: “University - Education, Event and Course Theme”
My Website: www.dsce.edu.bd
My Problems: Showing “Free” options on “events”. Want to avoid this “Free”
Events Link: http://www.dsce.edu.bd/event/

2

Hi,
Please contact to theme author using https://themeforest.net/item/university-education-event-and-course-theme/8412116/support
Regards