Fatal error: Uncaught Error: Call to a member function generateCoupon() on null in /home/fastmicr/public_html/bg.livolo.bg/vendor/dotmailer/dotmailer-magento2-extension/view/frontend/templates/email/coupon.phtml:5 Stack trace: #0 {main} thrown in /home/fastmicr/public_html/bg.livolo.bg/vendor/dotmailer/dotmailer-magento2-extension/view/frontend/templates/email/coupon.phtml on line 5