php warnings … deprecated code

I’m testing out PHP 7.3.1 and am getting some PHP Deprecated warnings for the Events + plugin,

Deprecated: define(): Declaration of case-insensitive constants is deprecated in wp-content/plugins/events-and-bookings/events-and-bookings.php on line 1567

Deprecated: define(): Declaration of case-insensitive constants is deprecated in wp-content/plugins/events-and-bookings/events-and-bookings.php on line 1578

Deprecated: define(): Declaration of case-insensitive constants is deprecated in wp-content/plugins/events-and-bookings/events-and-bookings.php on line 1581

Deprecated: define(): Declaration of case-insensitive constants is deprecated in wp-content/plugins/events-and-bookings/lib/class_eab_addon_handler.php on line 8

Deprecated: define(): Declaration of case-insensitive constants is deprecated in wp-content/plugins/events-and-bookings/lib/default_filters.php on line 375

Can you update those functions to PHP 7.3