Hi,

For general help on DAViCal see:
http://wiki.davical.org/w/Getting_Help

The place to have discussions about DAViCal are (in order of preference):

- The IRC channel - #davical on irc.oftc.net
- The Mailing List
- The sourceforge forums & bug trackers

The error message you are getting could occur for many reasons. Possibly you have mod_dav enabled (you shouldn't). You should look in the Apache error log (PHP error log) for more information.

Thanks,
Andrew McMillan.