Warning: require(/opt/18/admin/public/../vendor/autoload.php): Failed to open stream: No such file or directory in /opt/18/admin/public/index.php on line 16

Fatal error: Uncaught Error: Failed opening required '/opt/18/admin/public/../vendor/autoload.php' (include_path='.:') in /opt/18/admin/public/index.php:16 Stack trace: #0 {main} thrown in /opt/18/admin/public/index.php on line 16