My Pusher Realtime chat app working Live on Local(XAMPP SERVER) but after host it not working LIVE

I have setup laravel Realtime chat app using this https://github.com/AfikDeri/Messenger-App-VueJS-and-Laravel but it working well for my local computer. after host it on server it doesn't working realtime but messages working. receiver must refresh page. please help me to slove this

via Chebli Mohamed