Fatal error: Uncaught Error: Interface 'Magento\Framework\View\Element\Message\Renderer\PoolInterface' not found in /home/esecureh/public_html/magdemo/vendor/magento/framework/View/Element/Message/Renderer/RenderersPool.php:8 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/framework/View/Element/Message/Renderer/RenderersPool.php on line 8