Kaltura_Client_Exception thrown

Invalid KS "MWNlODA3NzNhMmNkNWU5NDNiMjEzZWNhNWVkMzIzNGQ2MTEzNmU4NHwxMDE7OzE0OTM1NTEwNTE7MjsxNDkzNDY0NjUxLjMzMDg7QW5vbnltb3VzO2VkaXQ6Kg==", Error "-1,INVALID_STR"