Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /var/www/html/includes/release/paypal/PayPal/psr/log/Psr/Log/Test/LoggerInterfaceTest.php:14 Stack trace: #0 {main} thrown in /var/www/html/includes/release/paypal/PayPal/psr/log/Psr/Log/Test/LoggerInterfaceTest.php on line 14