Kaltura_Client_Exception thrown

Invalid KS "ODM4YTA5NzY5MjhhOTNhMTFkZmY3NDY2ZjJiOGU5MTgyMzE1MTVjZnwxMDE7OzE0ODc4MjQwMTM7MjsxNDg3NzM3NjEzLjI5NjI7QW5vbnltb3VzO2VkaXQ6Kg==", Error "-1,INVALID_STR"