Laravel custom error outside Form Request or Validator

CustomError.php

<?php

namespace Daison\Utils;

use Illuminate\Support\MessageBag;
use Illuminate\Contracts\Validation\Validator as ValidatorContract;

class CustomError implements ValidatorContract
{
    /**
     * $messages
     *
     * @var array
     */
    protected $messages;

    /**
     * __construct
     *
     * @param mixed $messages
     * @return void
     */
    public function __construct($messages)
    {
        $this->messages = $messages;
    }

    /**
     * {@inheritdoc}
     */
    public function errors()
    {
        return $this->getMessageBag();
    }

    /**
     * getMessageBag
     *
     * @return void
     */
    public function getMessageBag()
    {
        return new MessageBag($this->messages);
    }

    public function validate() {}
    public function fails() {}
    public function failed() {}
    public function sometimes($attribute, $rules, callable $callback) {}
    public function after($callback) {}
}