Fatal error: Uncaught Error: Interface 'Whoops\Handler\HandlerInterface' not found in /home/noct-c/www/tanakahashi/vendor/filp/whoops/src/Whoops/Handler/Handler.php:15
Stack trace:
#0 {main}
thrown in /home/noct-c/www/tanakahashi/vendor/filp/whoops/src/Whoops/Handler/Handler.php on line 15