Kaltura_Client_Exception thrown

Invalid KS "N2ViNmUzOWNlNzEzNGQxMzAxY2E5MGJhMTJkNGMxMmRlZjYzYThlOHwxMDE7OzE0OTM2NTc2ODA7MjsxNDkzNTcxMjgwLjc2OTQ7QW5vbnltb3VzO2VkaXQ6Kg==", Error "-1,INVALID_STR"