undefined method `new_page_templates' for nil

[zilton7]

• Ruby 3.3.1
• Rails 7.1.5.1

I followed the installation guide, but when I logged in I get:

NoMethodError in Spina::Admin::PagesController#index
undefined method `new_page_templates' for nil

        else
          @pages = Page.active.sorted.roots.main.includes(:translations)
          @page_templates = Spina::Current.theme.new_page_templates
        end
      end

Rails.root: /home/zil/DEV/RAILS/spina-cms-test
[Application Trace](http://localhost:3000/admin/login#) | [Framework Trace](http://localhost:3000/admin/login#) | [Full Trace](http://localhost:3000/admin/login#)
spina (2.5.0) app/controllers/spina/admin/pages_controller.rb:17:in `index'
actionpack (7.1.5.1) lib/action_controller/metal/basic_implicit_render.rb:6:in `send_action'
actionpack (7.1.5.1) lib/abstract_controller/base.rb:224:in `process_action'
actionpack (7.1.5.1) lib/action_controller/metal/rendering.rb:165:in `process_action'
actionpack (7.1.5.1) lib/abstract_controller/callbacks.rb:259:in `block in process_action'
activesupport (7.1.5.1) lib/active_support/callbacks.rb:121:in `block in run_callbacks'
turbo-rails (2.0.11) lib/turbo-rails.rb:24:in `with_request_id'
turbo-rails (2.0.11) app/controllers/concerns/turbo/request_id_tracking.rb:10:in `turbo_tracking_request_id'
activesupport (7.1.5.1) lib/active_support/callbacks.rb:130:in `block in run_callbacks'
actiontext (7.1.5.1) lib/action_text/rendering.rb:23:in `with_renderer'
actiontext (7.1.5.1) lib/action_text/engine.rb:69:in `block (4 levels) in <class:Engine>'
activesupport (7.1.5.1) lib/active_support/callbacks.rb:130:in `instance_exec'
activesupport (7.1.5.1) lib/active_support/callbacks.rb:130:in `block in run_callbacks'
activesupport (7.1.5.1) lib/active_support/callbacks.rb:141:in `run_callbacks'
actionpack (7.1.5.1) lib/abstract_controller/callbacks.rb:258:in `process_action'
actionpack (7.1.5.1) lib/action_controller/metal/rescue.rb:25:in `process_action'
actionpack (7.1.5.1) lib/action_controller/metal/instrumentation.rb:74:in `block in process_action'
activesupport (7.1.5.1) lib/active_support/notifications.rb:206:in `block in instrument'