NoMethodError in Designs#design_page

Showing /var/www/romantic/releases/20210208051251/app/views/designs/captain.haml where line #15 raised:

undefined method `title' for nil:NilClass

Extracted source (around line #15):

12
13
14
15
16
17
18
          
.design-content
.white-sheet
%h1
=page_title @page.title
.design-intro

Rails.root: /var/www/romantic/releases/20210208051251

Application Trace | Framework Trace | Full Trace
app/views/designs/captain.haml:15:in `_app_views_designs_captain_haml__1061805985_109102300'
app/controllers/designs_controller.rb:36:in `design_page'

Request

Parameters:

{"id"=>"captain"}

Response

Headers:

None