Warning: require_once(vendor/autoload.php): Failed to open stream: Permission denied in /var/www/pbi/index.php on line 316

Fatal error: Uncaught Error: Failed opening required 'vendor/autoload.php' (include_path='.:/usr/share/php') in /var/www/pbi/index.php:316 Stack trace: #0 {main} thrown in /var/www/pbi/index.php on line 316