Fatal error: Uncaught Error: Interface 'Codeception\Test\Loader\LoaderInterface' not found in /var/www/html/ucetnik/vendor/codeception/base/src/Codeception/Test/Loader/Unit.php:9 Stack trace: #0 {main} thrown in /var/www/html/ucetnik/vendor/codeception/base/src/Codeception/Test/Loader/Unit.php on line 9