Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/php8crons/public_html/amazon-sp-api/vendor/amazon-php/sp-api-sdk/tests/AmazonPHP/SellingPartner/Tests/Unit/MarketplaceTest.php:11 Stack trace: #0 {main} thrown in /home/php8crons/public_html/amazon-sp-api/vendor/amazon-php/sp-api-sdk/tests/AmazonPHP/SellingPartner/Tests/Unit/MarketplaceTest.php on line 11