Fatal error: Uncaught Error: Interface 'Magento\Framework\Option\ArrayInterface' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-downloadable/Model/System/Config/Source/Contentdisposition.php:13 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-downloadable/Model/System/Config/Source/Contentdisposition.php on line 13