Fatal error: Uncaught Error: Class 'FunctionalTester' not found in /opt/lampp/htdocs/squidv2-stage-cr/tests/codeception/functional/AboutCept.php:7 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/squidv2-stage-cr/tests/codeception/functional/AboutCept.php on line 7