Pusher trigger() method is giving error 500 - laravel

Question

So I was building chat functionality in laravel for a website using Pusher , everything was working fine till yesterday. But when I run the chat module again, I found out that trigger() method is giving error (Internal server error).
`
use App\Http\Controllers\Controller;
use App\Model\Chatting;
use App\Model\Seller;
use App\Model\Shop;
use Brian2694\Toastr\Facades\Toastr;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use App\Events\Message;
use Pusher\Pusher;
class ChattingController extends Controller
{
public function seller_message_store(Request $request)
{
//return 'hello';
if ($request->message == '') {
Toastr::warning('Type Something!');
return response()->json('type something!');
} else {
$shop_id = Shop::where('seller_id', auth('seller')->id())->first()->id;
$message = $request->message;
$time = now();
DB::table('chattings')->insert([
'user_id' => $request->user_id, //user_id == seller_id
'seller_id' => auth('seller')->id(),
'shop_id' => $shop_id,
'message' => $request->message,
'sent_by_seller' => 1,
'seen_by_seller' => 0,
'created_at' => now(),
]);
//return auth('seller')->user()->seller_plan_id;
if(auth('seller')->user()->seller_plan_id>2){
// pusher
$options = array(
'cluster' => 'ap2',
'useTLS' => false
);
$pusher = new Pusher('app auth key','app secret','app_id',$options);
//return $request->user_id;
$data = ['from' => auth('seller')->id(), 'to' => $request->user_id,'message'=>$request->message]; // sending from and to user id when pressed enter
$pusher->trigger('channel-name', 'event', $data);//here is the issue
}
return response()->json(['message' => $message, 'time' => $time]);
}
}
}
`
If I comment out the trigger line, it gives no error.
It was working completely fine till yesterday.

Answer 1

The version 5.0 of pusher is broken and has given me errors in the past.
What you could do is, change
"pusher/pusher-php-server": "5.0"
to
"pusher/pusher-php-server": "^5.0"
And then run the command composer update