Fatal error: Uncaught Error: Class "FSVendor\PHPUnit\Framework\TestCase" not found in /home/samipe/public_html/wp-content/plugins/flexible-shipping/vendor_prefixed/psr/log/Psr/Log/Test/LoggerInterfaceTest.php:14 Stack trace: #0 {main} thrown in /home/samipe/public_html/wp-content/plugins/flexible-shipping/vendor_prefixed/psr/log/Psr/Log/Test/LoggerInterfaceTest.php on line 14