Notice: Undefined offset: 1 - ERROR while searching for records

Notice: Undefined offset: 1 - ERROR while searching for records

Hi
I'm currently integrating our plattform (php ecommerce) with zoho crm for a client.

I've successfully installed the php sdk and got it working by obtaining access and refresh tokens.

Now i'm trying a simple request and it's returning me this error:
Notice: Undefined offset: 1

Framework:
Symfony 3.4 with "zohocrm/php-sdk-archive": "2.1.0" a

Error stack:
  1. Symfony\Component\Debug\Exception\ContextErrorException:
Notice: Undefined offset: 1

  at vendor/zohocrm/php-sdk-archive/src/crm/api/response/CommonAPIResponse.php:105
  at zcrmsdk\crm\api\response\CommonAPIResponse->setResponseJSON()
     (vendor/zohocrm/php-sdk-archive/src/crm/api/response/CommonAPIResponse.php:66)
  at zcrmsdk\crm\api\response\CommonAPIResponse->__construct(false, 0)
     (vendor/zohocrm/php-sdk-archive/src/crm/api/response/BulkAPIResponse.php:47)
  at zcrmsdk\crm\api\response\BulkAPIResponse->__construct(false, 0)
     (vendor/zohocrm/php-sdk-archive/src/crm/api/APIRequest.php:148)
  at zcrmsdk\crm\api\APIRequest->getBulkAPIResponse()
     (vendor/zohocrm/php-sdk-archive/src/crm/api/handler/MassEntityAPIHandler.php:291)
  at zcrmsdk\crm\api\handler\MassEntityAPIHandler->getRecords(array(), array())
     (vendor/zohocrm/php-sdk-archive/src/crm/crud/ZCRMModule.php:1082)
  at zcrmsdk\crm\crud\ZCRMModule->getRecords()
     (src/AppBundle/Service/ZohoCRM.php:72)
  at AppBundle\Service\ZohoCRM->getRecordsSamlple()
     (src/AppBundle/Controller/ZohoOauthController.php:109)
  at AppBundle\Controller\ZohoOauthController->testRecords(object(ZohoCRM), object(Request))
     (vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php:151)
  at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), 1)
     (vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php:68)
  at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), 1, true)
     (vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php:200)
  at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
     (web/app_dev.php:31)
  at require('/Users/checcoux/Developer/forema/web/app_dev.php') 
         (vendor/symfony/symfony/src/Symfony/Bundle/WebServerBundle/Resources/router.php:42)