PHP String could not be parsed as XML

[namax]

Hi,

We are using "kaltura/api-client-library": "^v18.1.0",
and found this error

String could not be parsed as XML

#0 /vendor/kaltura/api-client-library/library/Kaltura/Client/Service/SearchService.php(106): SimpleXMLElement->__construct()
#1 Kaltura\Client\Service\SearchService->search()

it happens when we call
$searchResults = $this->initializeClient()->getSearchService()->search($search, $pager);
the initializeClient method returns instance of vendor/kaltura/api-client-library/library/Kaltura/Client/Client.php

$this->client->doQueue(); returns something that can't be handled by new \SimpleXMLElement constructor.

Would it be too difficult to add some verification?