ActiveRecord::RecordNotFound in ContactsController#compose

Couldn't find Collection with 'id'=21

Extracted source (around line #13):
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if contact_params[:collection_id]
@collection = Collection.find contact_params[:collection_id]
elsif contact_params[:identifier_value]
@collection = Collection.where(:identifier_value => contact_params[:identifier_value])[0]
end

Rails.root: /home/app/data_archives

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Request

Parameters:

{"collection_id"=>"21", "layout"=>"true", "mode"=>"request", "org_unit_id"=>"1"}

Response

Headers:

None