Hi Mei!.
I hope you are doing great. I’m not sure if you are referring to the title inside of the red circle (see next image).

Let me know if that’s correct if that’s the case you can hide the title on the categories using a filter, as follows:
// File: functions.php
function tribe_remove_title_on_categories_page( $title ) {
// Return Empty title on categories.
if ( tribe_is_event_category() ) {
return '';
}
// Return default otherwise.
return $title;
}
add_filter( 'tribe_get_events_title', 'tribe_remove_title_on_categories_page' );
Or if you want to go a step further you can customize the template being used by following the Themer’s guide., depends on your default type of view I guess is list you can edit the file:
list/content.php
Or if you have a different view like map:
map/content.php
To overwrite the default structure of your markup to match your needs.
Please let me know if you have any other particular questions about this.
Best
Crisoforo