Facing issue with Broadcast video through Vonage (tokbox) - php

Question

I am facing issue when i try to broadcast my video in
When I use 'startVideo' its working fine for me.
But my 'connectVideo' giving me issue, I have pasted code below. I have attached error screenshot also.
In my first function 'startVideo' I wrote code to start video its taking my webcam video, through second function 'connectVideo' i just want share/broadcast my video with my user.
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
use OpenTok\OpenTok;
use OpenTok\MediaMode;
use OpenTok\ArchiveMode;
use OpenTok\Role;
use OpenTok\Session;
use OpenTok\Broadcast;
use OpenTok\Layout;
class Welcome extends CI_Controller {
public function __construct()
{
parent::__construct();
}
public function index()
{
$this->load->view('welcome_message');
}
public function startVideo()
{
$opentok = new OpenTok($this->config->item('opentok_key'), $this->config->item('opentok_secret'));
$sessionOptions = array(
'archiveMode' => ArchiveMode::ALWAYS,
'mediaMode' => MediaMode::ROUTED
);
$session = $opentok->createSession($sessionOptions);
$iSessionId = $session->getSessionId();
date_default_timezone_set('Asia/Kolkata');
$created_date = date("Y-m-d H:i:s");
$data = array(
'apiKey' => $this->config->item('opentok_key'),
'sessionId' => $iSessionId,
'token' => $session->generateToken(),
'created_date' => $created_date
);
$archiveOptions = array(
'name' => 'Important Presentation', // default: null
'hasAudio' => true, // default: true
'hasVideo' => true, // default: true
// 'outputMode' => OutputMode::COMPOSED, // default: OutputMode::COMPOSED
'resolution' => '1280x720' // default: '640x480'
);
$this->load->view('video_11', $data);
}
public function connectVideo() // connect to a session
{
$opentok = new OpenTok($this->config->item('opentok_key'), $this->config->item('opentok_secret'));
$session = $opentok->createSession();
$sessionOptions = array(
'archiveMode' => ArchiveMode::ALWAYS,
'mediaMode' => MediaMode::ROUTED
);
$session = $opentok->createSession($sessionOptions);
$sessionId = $session->getSessionId();
$options = array(
'layout' => Layout::getBestFit(),
'maxDuration' => 5400,
'resolution' => '1280x720'
);
$broadcast = $opentok->startBroadcast($sessionId, $options);
// Store the broadcast ID in the database for later use
$broadcastId = $broadcast->id;
$token = 'T1==T1==cGFydG5lcl9pZD00NjQ5MTcwMiZzaWc9Y2MxYzkxYzNmYTkzNmNiNmQ0NDZiNWEzNzVhYjExYTliYTZkOTdlYzpzZXNzaW9uX2lkPTFfTVg0ME5qUTVNVGN3TW41LU1UWXhOVE00TXpJMU16WXdPWDVIWjB0WVp6SlJWRlJhVUV4c2FrczVOa0ZOZGk5SUwwOS1RWDQmY3JlYXRlX3RpbWU9MTYxNTM4MzI1MyZyb2xlPXB1Ymxpc2hlciZub25jZT0xNjE1MzgzMjUzLjY5ODUxOTY3MzAxNjU4';
$data = array(
'apiKey' => $this->config->item('opentok_key'),
'sessionId' => $session,
'token' => $token
);
$this->load->view('video_22', $data);
}
}
[![enter image description here][1]][1]
[1]: https://i.stack.imgur.com/Q1qBY.png