Fatal error: Uncaught Error: Class 'Magento\Catalog\Pricing\Price\RegularPrice' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-downloadable/Pricing/Price/LinkPrice.php:16 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-downloadable/Pricing/Price/LinkPrice.php on line 16