NoMethodError in CoursesController#show

undefined method `id' for nil:NilClass

Extracted source (around line #92):
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sub = c.corporation.subdomain
unless (c.corporation_id == current_corp.id) || (current_corp.classen_subscriber && current_corp.external_sub_id == c.corporation_id)
redirect_to "https://#{sub}.nuvolaacademy.com/courses/#{c.id}"
return false
else

Rails.root: /var/www/nuvola_academy

Application Trace | Framework Trace | Full Trace

Request

Parameters:

{"id"=>"355"}

Response

Headers:

None