Fatal error: Uncaught Error: Call to a member function empty_cart() on null in /srv/users/ihs4u2/apps/ihs4u2/public/wp-content/plugins/mage-eventpress/inc/mep_functions.php:514
Stack trace:
#0 /srv/users/ihs4u2/apps/ihs4u2/public/wp-content/plugins/mage-eventpress/inc/mep_functions.php(543): mep_temp_attendee_auto_delete_for_cart()
#1 /srv/users/ihs4u2/apps/ihs4u2/public/wp-includes/class-wp-hook.php(324): mep_auto_load('')
#2 /srv/users/ihs4u2/apps/ihs4u2/public/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#3 /srv/users/ihs4u2/apps/ihs4u2/public/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#4 /srv/users/ihs4u2/apps/ihs4u2/public/wp-settings.php(704): do_action('init')
#5 /srv/users/ihs4u2/apps/ihs4u2/public/wp-config.php(111): require_once('/srv/users/ihs4...')
#6 /srv/users/ihs4u2/apps/ihs4u2/public/wp-load.php(50): require_once('/srv/users/ihs4...')
#7 /srv/users/ihs4u2/apps/ihs4u2/public/wp-blog-header.php(13): require_once('/srv/users/ihs4...')
#8 /srv/users/ihs4u2/apps/ihs4u2/public/index.php(17): require('/srv/users/ihs4...')
#9 {main}
thrown in /srv/users/ihs4u2/apps/ihs4u2/public/wp-content/plugins/mage-eventpress/inc/mep_functions.php on line 514