NoMethodError in KnaCpdsController#show

undefined method `chembl_cpd_inchies' for nil:NilClass

Extracted source (around line #100):
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@kna_cpd_species = @kna_cpd.kna_species
@molregnos_by_full = @kna_cpd.inchi_full.chembl_cpd_inchies.map{ |i| i.id }
@molregnos_by_main = @kna_cpd.inchi_full.inchi_main.chembl_cpd_inchies.map{ |i| i.id }
ctd_cpds_w_cas = CtdCpd.includes(:cas_rns => :kna_cpds).where("kna_cpds.id" => @kna_cpd.id).uniq

Rails.root: /srv/www/webapp/pcidb

Application Trace | Framework Trace | Full Trace
app/controllers/kna_cpds_controller.rb:100:in `show'

Request

Parameters:

{"id"=>"6182"}

Response

Headers:

None