NoMethodError in CollectionLocations#show

Showing /var/www/vhosts/mosquitoticksite.net/httpdocs/app/views/collection_locations/show.html.erb where line #1 raised:

undefined method `name' for nil:NilClass
Extracted source (around line #1):
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<% title 'Life Stage | ' + @life_stage.name %>
<%= link_to('<< Back to Locality List', localities_path) %>
<div class="collections show">
<div class="row">

Rails.root: /var/www/vhosts/mosquitoticksite.net/httpdocs

Application Trace | Framework Trace | Full Trace

Request

Parameters:

{"id"=>"42"}

Response

Headers:

None