connection issues

hello, i've bought my camera 2 weeks ago. I've been using it with my phone(one plus 6t) but after the last firmware update I'm not able to connect to the camera anymore. Sometime the wifi signal of the camera is not even available(when I try manual connection), and when it does the phone is unable to connect to it. When I use the app to connect the error is 14061 bluetooth like error. Anyone can help me?thanks