Software » Web » Redmine plugins » Scrum

Hi,

I've just installed the Scrum plugin 0.9.1
Everything works fine except the two menus:
product backlog burndown
and
Release plan
By clicking on them I receive an Internal Error message.
The log file reports:
.....
Processing by ProductBacklogController#burndown as HTML
Parameters: {"project_id"=>"migrazione-applicativi"}
Current user: admin (id=1)
Completed 500 Internal Server Error in 33.3ms

ArgumentError (wrong number of arguments (1 for 0)):
......

Current Environment:
CentOS V6.6
Environment:
Redmine version 2.6.3.stable
Ruby version 1.8.7-p374 (2013-06-27) [x86_64-linux]
Rails version 3.2.21
Environment production
Database adapter MySQL

Any clue?

Regards