ActionView::Template::Error: undefined method `>' for nil (ActionView::Template::Error)

[sentry-io]

Sentry Issue: ADMIN-45

NoMethodError: undefined method `>' for nil (NoMethodError)

    select { |b| b.expires_at > DateTime.now }
                              ^
  app/models/broadcast.rb:3:in `block in unexpired'
    select { |b| b.expires_at > DateTime.now }
  app/models/broadcast.rb:3:in `unexpired'
    select { |b| b.expires_at > DateTime.now }
  app/views/layouts/admin.html.erb:37:
    <% Broadcast.unexpired.each do |b| %>
  app/views/layouts/application.html.erb:23:
    <%= yield_nested %>
...
(151 additional frame(s) were not displayed)

ActionView::Template::Error: undefined method `>' for nil (ActionView::Template::Error)

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