when I click on "configure" in plugin page I've redmine error. in log I have:

ActionView::Template::Error (undefined method `map' for "translation missing: it.label_crm_countries":String
Did you mean?  tap):
    11:
    12: <p>
    13:   <label><%= l(:label_crm_default_country) %></label>
    14:   <%= select_tag  'settings[default_country]', options_for_select(countries_for_select, ContactsSetting.default_country) %>
    15: </p>
    16:
    17: <p>
  plugins/redmine_contacts/app/views/settings/contacts/_contacts_general.html.erb:14:in `_12deec95ffa0554697688ac5d5e7f99c'
  app/views/common/_tabs.html.erb:17:in `block in _5a5165c449ac01c6ee2972ee8289279e'
  app/views/common/_tabs.html.erb:16:in `each'
  app/views/common/_tabs.html.erb:16:in `_5a5165c449ac01c6ee2972ee8289279e'
  app/helpers/application_helper.rb:345:in `render_tabs'
  plugins/redmine_contacts/app/views/settings/contacts/_contacts.html.erb:3:in `_c0446f71a2b1aa6f2e28fbfc6be2a99c'
  app/views/settings/plugin.html.erb:6:in `block in _31562f0d10efc3d9d57d46cb6d419113'
  app/views/settings/plugin.html.erb:4:in `_31562f0d10efc3d9d57d46cb6d419113'
  lib/redmine/sudo_mode.rb:63:in `sudo_mode'