Fatal error: Uncaught Error: Class 'Whoops\Handler\Handler' not found in /home/edmedu/www/edmtw.com/dev.bak/vendor/filp/whoops/src/Whoops/Handler/CallbackHandler.php:16 Stack trace: #0 {main} thrown in /home/edmedu/www/edmtw.com/dev.bak/vendor/filp/whoops/src/Whoops/Handler/CallbackHandler.php on line 16