/top-referrers/
  (2) in_array() expects parameter 2 to be array, null given   Cacher.php   line 121     7-12-21   15:18
FrontController->dispatch() # line   18, file: /htdocs/index.php
  call_user_func_array(Array[2], Array[0]) # line  220, file: /htdocs/core/FrontController.php
    SiteController->topReferrersAction() # line    0, file: unknown
      OtherReferrerSiteModel->checkReset() # line  301, file: /htdocs/controllers/SiteController.php
        OtherReferrerSiteModel->removeAll() # line   82, file: /htdocs/models/OtherReferrerSiteModel.php
          Cacher->clean("tag", Array[1]) # line   26, file: /htdocs/models/OtherReferrerSiteModel.php
            in_array("setting", null) # line  121, file: /htdocs/core/Cacher.php