Impossible to say with the limited information you're giving us. At a minimum, how about the type of station, and the log?
See the Wiki article *Help! Posting to weewx-user <https://github.com/weewx/weewx/wiki/Help!-Posting-to-weewx-user>*. On Sun, Jun 21, 2020 at 11:45 AM michael form <mike.f...@gmail.com> wrote: > I have Weewx 3.9.2 running on a Raspberry Pi 3 using the Debiam install. > Until this morning, everything was working fine. When I went to look at the > web page this afternoon, the system was unresponsive. This included the Pi > itself. I rebooted the system and it came up OK but now the graphs on the > web page are not updating, although it seems that the sensors are sending > back valid data, that is the temperature readings are reasonable and the > date and time are correct. However, the graphs are not updating and are > stuck at around 3:00 AM this morning, which is when the system seems to > have stopped. > > I have no idea on why things got stuck, as the system has been running > without a problem for over a month. The problem could be with the Pi and/or > Raspbian, but that does not explain why everything rebooted and is working > except the plots. > > Any ideas on where to look? > > Thanks. > > Michael > > > -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to weewx-user+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/e2d9a7dc-0cd1-4013-a817-2d58123b16deo%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/e2d9a7dc-0cd1-4013-a817-2d58123b16deo%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAPq0zEBYgG%2BM2%3DTae9iQHUpzuAEtgzdm%2BD35rJrOCq-epN1bng%40mail.gmail.com.