Are you sure there is no error in the logs? I usually have clues in the logs if there were errors. What system are ou running on?
If you installed via .deb or apt-get take a look here: https://groups.google.com/forum/#!topic/weewx-user/ydhQftFQ2Ys -- 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. For more options, visit https://groups.google.com/d/optout.