Kaltura_Client_Exception thrown

Invalid KS "ODVlOTE5ZmQzMjkyNTc4Y2ZmMDFjNTc2MDk0ZTBiYjcwMWM0Nzc2ZnwxMDE7OzE0OTg2OTU1MTA7MjsxNDk4NjA5MTEwLjA3NjU7QW5vbnltb3VzO2VkaXQ6Kg==", Error "-1,INVALID_STR"