NoMethodError in CamaleonCms::Frontend#category

Showing /app/app/apps/themes/mapbiomas_alerta_theme/views/category.html.erb where line #7 raised:

undefined method `decorate' for nil:NilClass
Extracted source (around line #7):
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<div class="content">
<div class="row">
<% @post_type.the_category('news').decorate.the_posts.reverse.each_with_index do |post, index| %>
<%= raw "<div class='clearfix'></div>" if index%3 == 0 && index > 0 %>
<%= render partial: 'partials/post_list_item', locals: {post: post.decorate, index: index} %>
<% end %>

Rails.root: /app

Application Trace | Framework Trace | Full Trace

Request

Parameters:

{"locale"=>"en", "label"=>"category", "category_id"=>"108-tutorials", "title"=>"videos"}

Response

Headers:

None