ActiveRecord::RecordNotFound in ObjectController#names

Couldn't find Objekt with 'id'=576
Extracted source (around line #18):
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listing_mode = params[:mode] || 'zapis'
object = Objekt.find(id_objektu)
cards = Card.order(:zapis).joins(:objekt).where(:cards_objekty => {:objekt_id => id_objektu})
names = case listing_mode
when 'zapis'

Rails.root: /home/martin/rails/spjms-public/spjms-production

Application Trace | Framework Trace | Full Trace

Request

Parameters:

{"id"=>"576"}

Response

Headers:

None