Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /home/www/spiritcoffee.club/wp-content/plugins/sg-ai-studio/vendor/charles-rumley/php-po-to-json/tests/PoToJsonTest.php:6 Stack trace: #0 {main} thrown in /home/www/spiritcoffee.club/wp-content/plugins/sg-ai-studio/vendor/charles-rumley/php-po-to-json/tests/PoToJsonTest.php on line 6