<select name="form[delivery][zone_id]" class="quickform__select delivery-zone-select {% FOR order_delivery %}{% IF order_delivery.first %}{% IF order_delivery.zone_list_empty %}_hide{% ENDIF %}{% ENDIF %}{% ENDFOR %}" data-delivery-id="{order_delivery.ID}">
Замените его на данный код:
<select name="form[delivery][zone_id]" class="quickform__select delivery-zone-select {% FOR order_delivery %}{% IF order_delivery.first %}{% IF order_delivery.zone_list_empty %}_hide{% ENDIF %}{% ENDIF %}{% ENDFOR %}" data-delivery-id="{% FOR order_delivery %}{% IF order_delivery.first %}{order_delivery.ID}{% ENDIF %}{% ENDFOR %}">