Fatal error: Uncaught Error: Interface "Dotenv\Repository\RepositoryInterface" not found in /home/course/u51/public_html/sandbox/vendor/vlucas/phpdotenv/src/Repository/AdapterRepository.php:11 Stack trace: #0 {main} thrown in /home/course/u51/public_html/sandbox/vendor/vlucas/phpdotenv/src/Repository/AdapterRepository.php on line 11