Kaltura_Client_Exception thrown

Invalid KS "ODFiZDQ3MjRkNWVkNjA1MzdiNWI4ZDdhMjYxODY0YmIxMTUyM2I0ZXwxMDE7OzE0NzUzMDYzODc7MjsxNDc1MjE5OTg3LjE4MDQ7QW5vbnltb3VzO2VkaXQ6Kg==", Error "-1,INVALID_STR"