Fatal error: Uncaught Error: Call to a member function escapeHtml() on null in /home/esecureh/public_html/magdemo/vendor/magento/module-offline-payments/view/adminhtml/templates/info/pdf/purchaseorder.phtml:10 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-offline-payments/view/adminhtml/templates/info/pdf/purchaseorder.phtml on line 10