livewire example of emit throw errors

form-component.php

<?php
/**
     * 
     * Save domain or wildcard 
     * regex from this crazy: 
     * wildcard: *.wilddomain.hu
     * https://www.regextester.com/102477
     *
     * validator: 
     * https://laravel-livewire.com/docs/2.x/input-validation
     */
    public function save()
    {

        try {
            $regex_full = '/^((\*)|((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|((\*\.)?([a-zA-Z0-9-]+\.){0,5}[a-zA-Z0-9-][a-zA-Z0-9-]+\.[a-zA-Z]{2,63}?))$/';

            $this->validate([
                'form.domain' => ['required', 'regex:' . $regex_full],
            ]);
        } catch (ValidationException $e) {
            $validator = $e->validator;
            //dd($validator);
            $type = 'error';
            $message = 'A domain formátuma érvénytelen.';
            $this->emitTo('kiddomain.notification-component', 'flash_message', $type, $message);

            throw $e;
        }

        $info['success'] = '';

        DB::beginTransaction();
        try {
            $query = [
                "kid_id" => $this->kid->id,
                "domain" => $this->form["domain"],
                "is_white" => $this->form["is_white"],
                "is_wildcard" => $this->form["is_wildcard"],
            ];

            $condition = [
                "kid_id" => $this->kid->id,
                "domain" => $this->form["domain"]
            ];

            $info["domain"] = KidDomain::updateOrCreate($condition, $query);

            DB::commit();
            $info['success'] = true;
        } catch (\Exception $e) {
            DB::rollback();
            $info['error'] = $e;
        }

        if ($info['success']) {
            $type = 'success';
            $message = 'Új domain hozzáadva.';
        } else {
            $type = 'error';
            $message = 'Valami hiba történt a mentés közben.';
        }

        $this->emitTo('kiddomain.notification-component', 'flash_message', $type, $message);

        $this->emitTo('kiddomain.list-component', 'load_list');
    }

listc-omponent.php

<?php

namespace App\Http\Livewire\Kiddomain;

use Livewire\Component;
use App\KidDomain;

class ListComponent extends Component
{
    public $kidDomains = [];

    public $kid;

    public $listeners = [
        "load_list" => "loadList"
    ];

    public function mount()
    {
        $this->loadList();
    }
    public function loadList()
    {
        $kidDomains = KidDomain::where('kid_id', $this->kid->id)->orderBy('created_at', 'desc')->get();

        $this->kidDomains = $kidDomains;
    }

    public function render()
    {
        return view('livewire.kiddomain.list-component');
    }
}

notification-component.php

<?php

namespace App\Http\Livewire\Kiddomain;

use Livewire\Component;

class NotificationComponent extends Component
{
    public $listeners = [
        "flash_message" => "flashMessage"
    ];

    public function flashMessage($type, $msg)
    {
        session()->flash($type, $msg);
    }
    public function render()
    {
        return view('livewire.kiddomain.notification-component');
    }
}