Kaltura_Client_Exception thrown

Invalid KS "ZDE5NjFmZTMyM2Y3YjQ3NTA5Y2EwNjYzNzBhYTFjODE3OTM4YWQxMXwxMDE7OzE0OTM0NTM3Mjg7MjsxNDkzMzY3MzI4LjUzNztBbm9ueW1vdXM7ZWRpdDoq", Error "-1,INVALID_STR"