Kaltura_Client_Exception thrown

Invalid KS "ODhkM2IzOTI0OWUzYmRmYzhkZTIwYzdkNjBhNmI2MTgxMjk2NTYxOHwxMDE7OzE0ODA5MTg4Mzc7MjsxNDgwODMyNDM3LjI2MDI7QW5vbnltb3VzO2VkaXQ6Kg==", Error "-1,INVALID_STR"