Anybody have an idea what to do next?
Installing a new instance from the next "release" is not an option, as there is quite of lot of data in the db. Inserting the existing database in a new instance seems impossible. So that means we hava a broken instance, with no means to export data.
My guess is that "upgrading" went wrong (trackback was instead installed twice), upgrading the package lars-blogger also went wrong.
It seems it is impossible to really cleanly remove a package and after that reinstall it.
I wonder when it is wise to actually use OpenACS. Which release would be mature enough? 5.1? And after that not upgrading any packages would probably be the best option.