adrema/app/Exceptions/Handler.php

<?php

namespace App\Exceptions;

use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;
use Illuminate\Validation\ValidationException;
use Throwable;
use Zoomyboy\LaravelNami\LoginException;

class Handler extends ExceptionHandler
{
    /**
     * A list of the exception types that are not reported.
     *
     * @var string[]
     */
    protected $dontReport = [
    ];

    /**
     * A list of the inputs that are never flashed for validation exceptions.
     *
     * @var string[]
     */
    protected $dontFlash = [
        'password',
        'password_confirmation',
    ];

    /**
     * Report or log an exception.
     *
     * @return void
     *
     * @throws \Exception
     */
    public function report(Throwable $exception)
    {
        parent::report($exception);
    }

    /**
     * Render an exception into an HTTP response.
     *
     * @param \Illuminate\Http\Request $request
     *
     * @return \Symfony\Component\HttpFoundation\Response
     *
     * @throws \Throwable
     */
    public function render($request, Throwable $exception)
    {
        if ($exception instanceof LoginException) {
            throw ValidationException::withMessages(['nami' => 'NaMi Login fehlgeschlagen.']);
        }

        return parent::render($request, $exception);
    }
}