we installed zammad updates today from zammad debian 10 repository and now we have problems with zammad.
E.g. when I want to pipe an email to zammad I get this error:
rails r Channel::Driver::MailStdin.new(trusted: true) 7401
procmail: Executing “rails,r,Channel::Driver::MailStdin.new(trusted: true)”
/opt/zammad/vendor/ruby-2.6.6/lib/ruby/2.6.0/bundler/spec_set.rb:91:in `block in materialize’: Could not find concurrent-ruby-1.1.8 in any of the sources (Bundler::GemNotFound)
Any ideas how i can fix this ?