Kaltura_Client_Exception thrown

Invalid KS "MWEyY2Q0ZWRlMTJiOGRiMGVjNzViMjFhYzExYzYyODAzNTU0YjBkNnwxMDE7OzE0OTYxMTI0NDg7MjsxNDk2MDI2MDQ4LjMxMzM7QW5vbnltb3VzO2VkaXQ6Kg==", Error "-1,INVALID_STR"