I tryed but fatal it did error :/ … what happened in ddivine.com?

Fatal error: Cannot redeclare av_countdown_events_fallback() (previously declared in /usr/home/ddivine.com/web/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/events_countdown/events_countdown.php:16) in /usr/home/ddivine.com/web/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/events_countdown.php on line 9