Yesterday I updated my piCal from 0.50 to 0.60. For my first impression everything worked well. But today I tried to edit an date. I just changed the titel of the entry. Klicking on save (in German "ﾄnderungen zuweisen") I got the following message:

Unknown column 'poster_tz' in 'field list'

I don't know what that means. I'm a Xoops-beginner.
Please help me.

P.S. piCal is really great, it has everything I need.