Kaltura_Client_Exception thrown

Invalid KS "ODI3NThjZDhlNmFhMTgyNTUwMmQ3OGJlMWUwMjlmYzQ4ZmZhZWM2Y3wxMDE7OzE0NzU0MjQxNjc7MjsxNDc1MzM3NzY3LjM1NjQ7QW5vbnltb3VzO2VkaXQ6Kg==", Error "-1,INVALID_STR"