redmine schedule plugin fault

I use redmine for project management. I have installed a plugin as per the steps which when run throws the following error. Please help me out.

When i delete the plugin and run, the server starts but am unable to do so when the plugin is copied to the folder.

The log is as follows:

C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5.2/lib/a ctive_support/dependencies.rb:274:in require': cannot load such file -- holiday s/ca (LoadError) from C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/activesupport- 4.2.5.2/lib/active_support/dependencies.rb:274:inblock in require' from C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/activesupport- 4.2.5.2/lib/active_support/dependencies.rb:240:in load_dependency' from C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/activesupport- 4.2.5.2/lib/active_support/dependencies.rb:274:inrequire' from C:/Sites/redmine/plugins/redmine_schedules/init.rb:3:in <top (requ ired)>' from C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/activesupport- 4.2.5.2/lib/active_support/dependencies.rb:274:inrequire' from C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/activesupport- 4.2.5.2/lib/active_support/dependencies.rb:274:in block in require' from C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/activesupport- 4.2.5.2/lib/active_support/dependencies.rb:240:inload_dependency' from C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/activesupport- 4.2.5.2/lib/active_support/dependencies.rb:274:in require' from C:/Sites/redmine/lib/redmine/plugin.rb:155:inblock in load' from C:/Sites/redmine/lib/redmine/plugin.rb:146:in each' from C:/Sites/redmine/lib/redmine/plugin.rb:146:inload' from C:/Sites/redmine/config/initializers/30-redmine.rb:21:in `'