Fatal error: Uncaught Error: Class "Amasty\XmlSitemap\Controller\Adminhtml\Sitemap\Generate" not found in /var/www/magento/html/app/code/BBNT/AmastyXMLSitemap/Controller/Adminhtml/Sitemap/Generate.php:20 Stack trace: #0 {main} thrown in /var/www/magento/html/app/code/BBNT/AmastyXMLSitemap/Controller/Adminhtml/Sitemap/Generate.php on line 20