Kaltura_Client_Exception thrown

Invalid KS "ZmVmZDNlMjhkNDI2NGJiMjE1NTA2Nzc0MWUzNzMwM2UwOWUzMTI5YnwxMDE7OzE0OTYyMzA2MDQ7MjsxNDk2MTQ0MjA0LjUwNTtBbm9ueW1vdXM7ZWRpdDoq", Error "-1,INVALID_STR"