Fatal error: Uncaught Error: Class 'WC_Settings_API' not found in /home/admin/public_html/wp-content/plugins/woocommerce/includes/emails/class-wc-email.php:33
Stack trace:
#0 /home/admin/public_html/wp-content/plugins/woocommerce-abandoned-cart/cron/class-wcal-admin-notification.php(36): require_once()
#1 /home/admin/public_html/wp-includes/class-wp-hook.php(341): Wcal_Admin_Notification->wcap_load_email_file('')
#2 /home/admin/public_html/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters(NULL, Array)
#3 /home/admin/public_html/wp-includes/plugin.php(522): WP_Hook->do_action(Array)
#4 /home/admin/public_html/wp-settings.php(593): do_action('plugins_loaded')
#5 /home/admin/public_html/wp-config.php(90): require_once('/home/admin/pub...')
#6 /home/admin/public_html/wp-load.php(50): require_once('/home/admin/pub...')
#7 /home/admin/public_html/wp-blog-header.php(13): require_once('/home/admin/pub...')
#8 /home/admin/public_html/index.php(17): require('/home/admin/pub...')
#9 {main}
  thrown in /home/admin/public_html/wp-content/plugins/woocommerce/includes/emails/class-wc-email.php on line 33