Updating database / Controller stack got out of kilter!

Dear List,

I´m running typo installed from the latest gem.
Got rails 1.2.1 and 1.1.6 installed.
I´m using my old typo-database, don´t remember which typo-version it
comes from.

I can see all my old posts and content from
http://myhost:4822/admin/content, but when viewing the main page, they
are all gone and I get the “Application error (Rails)” message in the
sidebar. I ran “update database” first thing, when I logged into the
admin page.

from production.log:
RuntimeError (Controller stack got out of kilter!):
/app/models/blog.rb:127:in after' /vendor/rails/actionpack/lib/action_controller/filters.rb:227:in around_filter’

Any suggestions on what to do?
Very grateful for all help!

Best regards,
Martin S.