```ruby
# frozen_string_literal: true

module Koi
  class ApplicationController < ActionController::Base
    include HasCrud::ActionController
    include ExportableController
    include IsAdminController

    helper Katalyst::GOVUK::FormBuilder::Frontend
  end
end
```

Fix capitalisation of Formbuilder helper
user
```ruby
# frozen_string_literal: true

module Koi
  class ApplicationController < ActionController::Base
    include HasCrud::ActionController
    include ExportableController
    include IsAdminController

    helper Katalyst::GOVUK::Formbuilder::Frontend
  end
end
```
assistant