fixes #7995 fix wrong translation key was used

plugins/UserCountry/Columns/Longitude.php

@@ -32,7 +32,7 @@ class Longitude extends Base
 
     public function getName()
     {
-        return Piwik::translate('UserCountry_Latitude');
+        return Piwik::translate('UserCountry_Longitude');
     }
 
     /**
@@ -77,4 +77,4 @@ class Longitude extends Base
     {
         return $visitor->getVisitorColumn($this->columnName);
     }
-}
\ No newline at end of file
+}