I signed up for the site and got the error message below. I really like the idea of what they're doing, but if they're going to be teaching rails, shouldn't they know better than to show all that information to users?

ActiveRecord::StatementInvalid in Devise::RegistrationsController#create SQLite3::BusyException: database is locked: commit transaction

Rails.root: /home/ubuntu/codelearn

Application Trace | Framework Trace | Full Trace