Redmine

After throwing some kind of a mysql_socket_error, I found out that the vm where redmine was set up had run out of disk space.
I went and freed up around 13GB (moved the backups, cleared tmp).
Now I'm getting an Error 500 - internal server error.
The logs (I attached the whole log file) say this:

/usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:196:in `start_synchronously'
/usr/lib/phusion_passenger/passenger-spawn-server:61

Rendering /usr/share/redmine/public/500.html (500 Internal Server Error)

Processing WelcomeController#index (for 172.16.2.33 at 2012-08-22 10:55:54) [GET]
Parameters: {"controller"=>"welcome", "action"=>"index"}

ActiveRecord::StatementInvalid (Mysql::Error: Table 'redmine_default.settings' doesn't exist: SHOW FIELDS FROM `settings`):
/usr/lib/ruby/vendor_ruby/active_record/connection_adapters/abstract_adapter.rb:227:in `log'
/usr/lib/ruby/vendor_ruby/active_record/connection_adapters/mysql_adapter.rb:324:in `execute'

Anyone, any idea on what may be the cause?

Distributor ID: Ubuntu
Description: Ubuntu 11.10
Release: 11.10
Codename: oneiric

ruby 1.8.7 (2011-12-28 patchlevel 357) [x86_64-linux]

Rails 2.3.14