Kaltura_Client_Exception thrown

Invalid KS "ODNhMjkzN2FmZDAwMTIxMTJmNjhkOGJmZGE2NDJjMGVjYjU2OGZjN3wxMDE7OzE0NzQ4NjIzNjM7MjsxNDc0Nzc1OTYzLjEyNDg7QW5vbnltb3VzO2VkaXQ6Kg==", Error "-1,INVALID_STR"