Redmine 4.1.0-9 cannot start after installing redmine_serial_number_field plugin

[iamriz]

Hello, may we ask advice on this? The bundle install command seems to be successful in the logs. But, when Redmine 4.1.0-9 is restarted after installing redmine_serial_number_field plugin, it cannot start.

Tried to do 'bundle exec rake' as well but an error was encountered.

bundle exec rake redmine:plugins:migrate RAILS_ENV=production --trace (in .../redmine/htdocs)
rake aborted!
LoadError: cannot load such file -- rails

Any feedback would be much appreciated. Thank you.