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Notice: Undefined index: nb_visits in /var/customers/webs/xxxxx/webseiten/piwik-xxxxx-xxxxx/plugins/UserCountryMap/Controller.php on line 85
Backtrace -->
#0 Piwik_ErrorHandler(…) called at [/var/customers/webs/xxxxx/webseiten/piwik-xxxxx-xxxx/plugins/UserCountryMap/Controller.php:85]
#1 Piwik_UserCountryMap_Controller->visitorMap(…) called at [:]
#2 call_user_func_array(…) called at [/var/customers/webs/xxxxx/webseiten/piwik-it-las/core/FrontController.php:136]
#3 Piwik_FrontController->dispatch(…) called at [/var/customers/webs/xxxx/webseiten/piwik-xxx-xxxx/index.php:52]