Kaltura_Client_Exception thrown

Invalid KS "N2Q4NWM5ZjE4Y2YzMDhlNzZiMWRlNjg4NGM3NmUyYjkyZmIzNWQwMHwxMDE7OzE0OTU4MDM1ODQ7MjsxNDk1NzE3MTg0LjcyMjtBbm9ueW1vdXM7ZWRpdDoq", Error "-1,INVALID_STR"