New Test plan > "Please create a version"

[jabulile]

Hi,

not sure if i am doing something wrong but i do not seem to be able to create a Test Plan.
i have a version for my project but every time i try to save a new test plan i get the message "Please create a version".

Environment:
Redmine version 2.3.0.stable
Ruby version 1.8.7 (x86_64-linux)
Rails version 3.2.13
Environment production
Database adapter Mysql2
Redmine plugins:
projects_tree_view 0.0.8
redcase 1.0 beta 2.0
redmine_extended_spent_time 0.0.3
redmine_graphs 0.1.0
redmine_impasse 1.2.2
redmine_knowledgebase 3.0.4
redmine_spent_time 2.6.4
redmine_timesheet_plugin 0.7.0
redmine_watcher_groups 1.0.0
redmine_wktime 1.6

[jabulile]

Started POST "/redmine/projects/gerbil/impasse/test_plans/new" for xx.xx.xx.xx at Sun Apr 27 15:14:19 +0200 2014
Processing by ImpasseTestPlansController#new as HTML
Parameters: {"commit"=>"Create", "authenticity_token"=>"+Q7oMvSkl4BE6CZ7LCzzC4Ouht5WTvBQRzRdsGJaGCc=", "test_plan"=>{"version_id"=>"1", "notes"=>"test plan notes", "name"=>"test plan name"}, "project_id"=>"gerbil", "utf8"=>"✓"}
Current user: xxxxx (id=7)
Rendered plugins/redmine_impasse/app/views/impasse_test_plans/_form.html.erb (5.0ms)
Rendered plugins/redmine_impasse/app/views/impasse_test_plans/new.html.erb within layouts/base (6.5ms)
Rendered inline template (0.5ms)
Completed 200 OK in 178ms (Views: 165.5ms | ActiveRecord: 4.2ms)