generateAccessToken Return Error: Undefined index: Email

Hi,

I use the SDK of zoho in Laravel 5.8, i use the first method :

ZCRMRestClient::initialize($this->configuration);

and works fine, then i generate the grant token and use the next method:

$grant_token="1000.asdfgzxcvsdfre234324"
 $oAuthClient = ZohoOAuth::getClientInstance();
 $oAuthTokens = $oAuthClient->generateAccessToken($grant_token);

Laravel return me this error:

ErrorException (E_NOTICE)

Undefined index: Email

This error is generated for the method of the SDK

/home
/vagrant
/code
/xxxxx
/vendor
/zohocrm
/php-sdk
/src
/oauth
/ZohoOAuthClient.php

 
    /**
     * zohoOAuthParams
     *
     * @param $zohoOAuthParams
     */
    public function setZohoOAuthParams($zohoOAuthParams)
    {
        $this->zohoOAuthParams = $zohoOAuthParams;
    }
 
    public function getUserEmailIdFromIAM($accessToken)
    {
        $connector = new ZohoOAuthHTTPConnector();
        $connector->setUrl(ZohoOAuth::getUserInfoURL());
        $connector->addHeadder(ZohoOAuthConstants::AUTHORIZATION, ZohoOAuthConstants::OAUTH_HEADER_PREFIX . $accessToken);
        $apiResponse = $connector->get();
        $jsonResponse = self::processResponse($apiResponse);
 
        return $jsonResponse['Email'];
    }
 
    public function processResponse($apiResponse)
    {
        list($headers, $content) = explode("\r\n\r\n", $apiResponse, 2);
        $jsonResponse = json_decode($content, true);
 
        return $jsonResponse;
    }
}

Arguments

"Undefined index: Email"

But, when i use Post for generate the token works fine, y use this vars: (the values is only for demo)

 private $configuration = [
        "client_id" => "1000.IGIP62CIE7F1119417BO9W4111111111",
        "client_secret" => "180abbdcda6af557726d389ee36db88111111",
        "redirect_uri" => "https://mysistem.com/redirect",
        "currentUserEmail" => "myemail@domain.com"
    ];

I need to send some additional parameter? or is it an error in your SDK?

I use PHP 7.2 with laravel 5.8