Fatal error: Uncaught Error: Call to undefined function WC() in /home/httpd/vhosts/meisterswiss.com/bettinam.ch/wp-content/plugins/woo-variation-gallery/includes/class-woo-variation-gallery-migrate-request.php:8
Stack trace:
#0 /home/httpd/vhosts/meisterswiss.com/bettinam.ch/wp-content/plugins/woo-variation-gallery/includes/class-woo-variation-gallery-migration.php(25): include_once()
#1 /home/httpd/vhosts/meisterswiss.com/bettinam.ch/wp-includes/class-wp-hook.php(341): Woo_Variation_Gallery_Migration::init('')
#2 /home/httpd/vhosts/meisterswiss.com/bettinam.ch/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters(NULL, Array)
#3 /home/httpd/vhosts/meisterswiss.com/bettinam.ch/wp-includes/plugin.php(522): WP_Hook->do_action(Array)
#4 /home/httpd/vhosts/meisterswiss.com/bettinam.ch/wp-settings.php(742): do_action('init')
#5 /home/httpd/vhosts/meisterswiss.com/bettinam.ch/wp-config.php(92): require_once('/home/httpd/vho...')
#6 /home/httpd/vhosts/meisterswiss.com/bettinam.ch/wp-load.php(50): require_once('/home/httpd/vho...')
#7 /home/httpd/vhosts/meisterswiss.com/bettinam.ch/wp-blog-header.php(13): require_once('/home/httpd/vho...')
#8 /home/httpd/vhosts/meisterswiss.com/bettinam.ch/index.php(17): require('/home/httpd/vho...')
#9 {main}
  thrown in /home/httpd/vhosts/meisterswiss.com/bettinam.ch/wp-content/plugins/woo-variation-gallery/includes/class-woo-variation-gallery-migrate-request.php on line 8