cannot view reports

[nayanad]

I'm getting below while trying to view reports.

Warning: include(vendor/autoload.php): failed to open stream: No such file or directory in /opt/lampp/htdocs/php-reports/index.php on line 13

Warning: include(): Failed opening 'vendor/autoload.php' for inclusion (include_path='.:/opt/lampp/lib/php') in /opt/lampp/htdocs/php-reports/index.php on line 13

Fatal error: Uncaught Error: Class 'Flight' not found in /opt/lampp/htdocs/php-reports/lib/PhpReports/PhpReports.php:31 Stack trace: #0 /opt/lampp/htdocs/php-reports/lib/PhpReports/PhpReports.php(682): PhpReports::init() #1 /opt/lampp/htdocs/php-reports/index.php(16): require('/opt/lampp/htdo...') #2 {main} thrown in /opt/lampp/htdocs/php-reports/lib/PhpReports/PhpReports.php on line 31