Fehler: Internal Server Error: Cannot modify association 'Complaint#lecturers' because it goes through more than one other association. /usr/local/rvm/gems/ruby-2.3.3/gems/activerecord-5.1.4/lib/active_record/associations/through_association.rb:89:in `ensure_not_nested'
Fehler: Internal Server Error: Cannot modify association 'Complaint#lecturers' because it goes through more than one other association. /usr/local/rvm/gems/ruby-2.3.3/gems/activerecord-5.1.4/lib/active_record/associations/through_association.rb:89:in `ensure_not_nested'