1st generation Circle App not work with RBR50 since early June

Have used circle smart parental controls on my Orbi router with 1st generation Circle App to control kids internet access for almost a year, but one monring early this June the whole family Wifi stopped working... After disable the parental control on the router and updated router's firmware to V2.5.1.16, the wifi was back. However, the my Circle App stucked at "Enable Circle" step, although circle was enable on the router, it kepts asking to enable circle and could not move to next setup...