failed: WebSocket is closed before the connection is established.

[fauzifadillah]

My application is deployed on Shared Hosting with SSH Access and Port 6001 opened. But when I try to establish the connection the console says:

failed: WebSocket is closed before the connection is established.

here's my config:
`
// broadcasting.php
'connections' => [

    'pusher' => [
        'driver' => 'pusher',
        'key' => env('PUSHER_APP_KEY'),
        'secret' => env('PUSHER_APP_SECRET'),
        'app_id' => env('PUSHER_APP_ID'),
        'options' => [
            'cluster' => env('PUSHER_APP_CLUSTER'),
            // 'useTLS' => true,
            'encrypted' => false,
            'host' => 'back-office.itsloco.co.id',
            'port' => 6001,
            'scheme' => 'http',
        ],
    ],`

please help:(