Changes initializer to avoid crash when migrating database from scratch

config/initializers/devise.rb

@@ -12,7 +12,7 @@ Devise.setup do |config|
   # Configure the e-mail address which will be shown in Devise::Mailer,
   # note that it will be overwritten if you use your own mailer class
   # with default "from" parameter.
-  if Rails.env.test?
+  if Rails.env.test? || !ActiveRecord::Base.connection.table_exists?('settings')
     config.mailer_sender = "noreply@example.org"
   else
     config.mailer_sender = "#{Setting['mailer_from_name']} <#{Setting['mailer_from_address']}>"