Fatal error: Uncaught Error: Class 'Whoops\Handler\Handler' not found in /home/noct-c/www/tanakahashi/vendor/filp/whoops/src/Whoops/Handler/PlainTextHandler.php:20
Stack trace:
#0 {main}
thrown in /home/noct-c/www/tanakahashi/vendor/filp/whoops/src/Whoops/Handler/PlainTextHandler.php on line 20