I see the next error now in the logs
[ E 2020-11-30 10:20:52.6820 21137/Tgz age/Cor/App/Implementation.cpp:221 ]: Could not spawn process for application /opt/bitnami/apps/redmine/htdocs/: The application encountered the following error: undefined method `email_delivery=' for ActionMailer::Base:Class (NoMethodError)
Error ID: 98549861
Error details saved to: /tmp/passenger-error-afRvqE.html
Did you modify anything related to the SMTP configuration? What changes did you do to the
production.rb file for your first issues to appear?
I think it is a good idea to ask in the Redmine official forums for this issue, as they know how the application works internally better