Delete 'comment' navigation tab

Good day,
If anyone can please assist me, there are these two navigation tabs in my event details page underneath the registration buttons, that I can't figure out how to delete and why they are there. The one says 'comment'.
adornmedia.co.za/clients/natgolfest/

Would appreciate if anyone got some idea.

Hello Jana

Go to Extensions -> Plugins, find and unpublish the plugin Events Booking - Jcomments plugin

After that, the tab will be hided

Regards,

Tuan