Fatal error: Uncaught Error: Failed opening required '/var/dev/sandbox/core/init/../../vendor/autoload.php' (include_path='.:/usr/share/php') in /var/dev/sandbox/core/init/index.php:15 Stack trace: #0 /var/dev/sandbox/public/index.php(57): require_once() #1 {main} thrown in /var/dev/sandbox/core/init/index.php on line 15