After a long time, I have finally gotten around to fixing the old Serendipity installation at http://wumswebsite.nl/wumlog/. I posted about this earlier in this thread:
viewtopic.php?f=3&t=20998&p=10447138
Both the database and the installation itself are now updated to the latest version. I can also log in again, after using fixauthor.php, and everything seems to be working fine, until I try to edit anything (make a new post, change settings, etc.). I get the following error (in Dutch, sorry can't change the language settings):
Any help would be greatly appreciated.Uw browser heeft geen geldig HTTP-Referrer-adres verstuurd. Dit kan veroorzaakt worden door een verkeerd geconfigureerde browser/proxy of door een aanval die tegen u is gericht. Uw actie werd geannuleerd.