undefined local variable or method `rcrm_acts_as_list'

[Odko]

Hello,
Couldn't reproduce the issue but SOMETIMES(but pretty often) the server returns Internal Server Error.

• Redmine version - 3.4.3.stable
• Ruby version - 2.3.3-p222 (2016-11-21) [x86_64-linux]
• Rails version - 4.2.8
• Database adapter - Mysql2
• Redmine checklists plugin(Light version) - 3.1.14

NameError (undefined local variable or method `rcrm_acts_as_list' for #<Class:0x007f0ac974d7b0>
Did you mean?  rcrm_acts_as_voter
               rcrm_acts_as_votable
               rcrm_acts_as_viewed):
  plugins/redmine_checklists/app/models/checklist.rb:53:in `<class:Checklist>'
  plugins/redmine_checklists/app/models/checklist.rb:20:in `<top (required)>'
  app/models/issue.rb:436:in `assign_attributes'
  app/models/issue.rb:588:in `safe_attributes='
  app/controllers/issues_controller.rb:473:in `update_issue_from_params'
  plugins/redmineup_tags/lib/redmine_tags/patches/issues_controller_patch.rb:35:in `update_issue_from_params_with_redmine_tags'
  app/controllers/issues_controller.rb:155:in `edit'
  lib/redmine/sudo_mode.rb:63:in `sudo_mode'```