Uncaught ReferenceError: $K is not defined

Piwiki UserCountryMap load error 2

Uncaught ReferenceError: $K is not defined index.php:1704
  UserCountryMap.run index.php:1704
  (anonymous function)
  o index.php:3
  p.add index.php:3
  e.fn.e.ready index.php:3
  e.fn.e.init index.php:3
  e index.php:3
  (anonymous function)
  (anonymous function) index.php:3
  e.extend.globalEval index.php:3
  (anonymous function) index.php:5
  e.extend.each index.php:3
  f.fn.extend.domManip index.php:5
  f.fn.extend.append index.php:4
  (anonymous function) index.php:5
  e.extend.access index.php:3
  f.fn.extend.html index.php:5
  onWidgetLoadedReplaceElementWithContent index.php:920
  o index.php:3
  p.fireWith index.php:3
  w index.php:5
  d index.php:5