Fatal error: Uncaught Error: Class 'Magento\Backend\Block\Template' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-adobe-ims/Block/Adminhtml/SignIn.php:25 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-adobe-ims/Block/Adminhtml/SignIn.php on line 25