Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /var/www/html/wp-content/plugins/sg-security/vendor/sepia/po-parser/tests/poparserTest.php:5 Stack trace: #0 {main} thrown in /var/www/html/wp-content/plugins/sg-security/vendor/sepia/po-parser/tests/poparserTest.php on line 5