You must first create a membership and connect the membership to Paid Content.
For more information on creating a membership and connecting to Paid Content, refer to these articles.
Search
<% if (previousArticle) { %>
<% } %>
<% if (allItems.length > 1) { %>
<% if (previousTitle) { %>
<% } %>
<% if (nextArticle) { %>
<%= previousTitle %>
<% } %> <%= previousArticle.title %>
<% if (nextTitle) { %>
<% } %>