Fixing the webcam is a complicated job, because first it needs to be clear what is the problem that causes the webcam not to send its pictures. The webcam itself is functioning, but the problem might be the ethernet cable that transmits the data, the connection to the internet modem, the modem settings and firewall, or the configuration of the receiving website server, or any combination of the above. It needs days of concentrated work to check this, for 2 people, one on the spot (Natalia) and one here in the office (me). Natalia is now not often in Sfakia, and her mother died suddenly last September, so we have to be patient.
All the best,