Fatal error: Uncaught Error: Class 'Magento\TestFramework\Helper\Bootstrap' not found in /home/fastmicr/public_html/bg.livolo.bg/vendor/dotmailer/dotmailer-magento2-extension/Test/Integration/_files/products.php:4 Stack trace: #0 /home/fastmicr/public_html/bg.livolo.bg/vendor/dotmailer/dotmailer-magento2-extension/Test/Integration/Adminhtml/Developer/HistoricalCatalogDataRefreshTest.php(8): include() #1 {main} thrown in /home/fastmicr/public_html/bg.livolo.bg/vendor/dotmailer/dotmailer-magento2-extension/Test/Integration/_files/products.php on line 4