Fatal error: Uncaught Error: Undefined constant "WOOCOMMERCE_VERSION"
in /var/www/vhosts/caesarsspirits.com/httpdocs/wp-content/plugins/ignitewoo-gift-certificates/woocommerce-gift-certificates.php on line 502

Call stack:

1. Ignite_Gift_Certs::pricer_init()
   wp-includes/class-wp-hook.php:324
2. WP_Hook::apply_filters()
   wp-includes/class-wp-hook.php:348
3. WP_Hook::do_action()
   wp-includes/plugin.php:517
4. do_action()
   wp-settings.php:695
5. require_once()
   wp-config.php:95
6. require_once()
   wp-load.php:50
7. require_once()
   wp-blog-header.php:13
8. require()
   index.php:17