Plugin break Woocommerce vouchers

We recently purchased Lucky Wheel and then the Email customizer and installed them. But when we go send out a Woocommerce Voucher, we get a conflict error with the Email customizer. The customerizer does not appear to work with Woocommerce voucher. Please advise. Thank you.

Fatal error: Uncaught Error: Too few arguments to function VIWECINCEmail_Trigger::replace_subject(), 2 passed in /home/customer/www/stuntdrives.com/public_html/wp-includes/class-wp-hook.php on line 287 and exactly 3 expected
in /home/customer/www/stuntdrives.com/public_html/wp-content/plugins/woocommerce-email-template-customizer/includes/email-trigger.php on line 103

Call stack:

VIWECINCEmail_Trigger::replace_subject()
wp-includes/class-wp-hook.php:287
WP_Hook::apply_filters()
wp-includes/plugin.php:212
apply_filters()
wp-content/plugins/woocommerce-pdf-product-vouchers/includes/emails/class-wc-pdf-product-vouchers-email-voucher-recipient.php:241
WC_PDF_Product_Vouchers_Email_Voucher_Recipient::get_subject()
wp-content/plugins/woocommerce-pdf-product-vouchers/includes/emails/class-wc-pdf-product-vouchers-email-voucher-recipient.php:228
WC_PDF_Product_Vouchers_Email_Voucher_Recipient::trigger_voucher()
wp-content/plugins/woocommerce-pdf-product-vouchers/includes/emails/class-wc-pdf-product-vouchers-email-voucher-recipient.php:106
WC_PDF_Product_Vouchers_Email_Voucher_Recipient::trigger()
wp-content/plugins/woocommerce-pdf-product-vouchers/includes/admin/meta-boxes/class-wc-pdf-product-vouchers-meta-box-voucher-actions.php:202
WC_PDF_Product_Vouchers_Meta_Box_Voucher_Actions::save()
wp-includes/class-wp-hook.php:287
WP_Hook::apply_filters()
wp-includes/class-wp-hook.php:311
WP_Hook::do_action()
wp-includes/plugin.php:484
do_action()
wp-content/plugins/woocommerce-pdf-product-vouchers/includes/admin/class-wc-pdf-product-vouchers-admin-vouchers.php:136
WC_PDF_Product_Vouchers_Admin_Vouchers::save()
wp-includes/class-wp-hook.php:289
WP_Hook::apply_filters()
wp-includes/class-wp-hook.php:311
WP_Hook::do_action()
wp-includes/plugin.php:484
do_action()
wp-includes/post.php:4309
wp_insert_post()
wp-includes/post.php:4411
wp_update_post()
wp-admin/includes/post.php:419
edit_post()
wp-admin/post.php:227