Redmine

I am using the redcase plugin with redmine 1.3.2. Redcase version is 1.0 alpha 0.144.

Everytime i tried to load an execution list, redmine throws the following error:

Processing RedcaseController#index to json (for 70.25.53.39 at 2012-04-12 17:54:25) [GET]
Parameters: {"format"=>"json", "project_id"=>"85", "action"=>"index", "controller"=>"redcase", "_dc"=>"1334271162891", "ex"=>"56"}

NoMethodError (for #<RedcaseController:0x2b96442ccb48>):
app/helpers/application_helper.rb:781:in `parse_headings'
app/helpers/application_helper.rb:779:in `gsub!'
app/helpers/application_helper.rb:779:in `parse_headings'
app/helpers/application_helper.rb:502:in `textilizable'
vendor/plugins/redcase/app/helpers/redcase_helper.rb:133:in `test_case_to_json'
vendor/plugins/redcase/app/helpers/redcase_helper.rb:164:in `execution_suite_to_json'
vendor/plugins/redcase/app/helpers/redcase_helper.rb:164:in `collect'
vendor/plugins/redcase/app/helpers/redcase_helper.rb:164:in `execution_suite_to_json'
vendor/plugins/redcase/app/controllers/redcase_controller.rb:59:in `index'
vendor/plugins/redcase/app/controllers/redcase_controller.rb:49:in `index'
thin (1.2.11) lib/thin/connection.rb:84:in `pre_process'
thin (1.2.11) lib/thin/connection.rb:82:in `catch'
thin (1.2.11) lib/thin/connection.rb:82:in `pre_process'
thin (1.2.11) lib/thin/connection.rb:57:in `process'
thin (1.2.11) lib/thin/connection.rb:42:in `receive_data'
eventmachine (0.12.10) lib/eventmachine.rb:256:in `run_machine'
eventmachine (0.12.10) lib/eventmachine.rb:256:in `run'
thin (1.2.11) lib/thin/backends/base.rb:61:in `start'
thin (1.2.11) lib/thin/server.rb:159:in `start'
thin (1.2.11) lib/thin/controllers/controller.rb:86:in `start'
thin (1.2.11) lib/thin/runner.rb:185:in `send'
thin (1.2.11) lib/thin/runner.rb:185:in `run_command'
thin (1.2.11) lib/thin/runner.rb:151:in `run!'
thin (1.2.11) bin/thin:6
/usr/bin/thin:19:in `load'
/usr/bin/thin:19

Rendering /opt/redmine-1.3.2/public/500.html (500 Internal Server Error)

I get the same issue with the newer redcase version 1.0 alpha 0.149.

Anyone encountered this issue before?