fix

httpdocs/src/Controller/BackendController.php

@@ -128,7 +128,7 @@ class BackendController extends AbstractController
                     $unique_users = (int)$activesheet->getCell('N'.$row)->getCalculatedValue();
                     $page_impressions = (int)$activesheet->getCell('P'.$row)->getCalculatedValue();
                     $visits = (int)$activesheet->getCell('R'.$row)->getCalculatedValue();
-                    $source = $activesheet->getCell('W'.$row)->getValue();
+                    $source = $activesheet->getCell('W'.$row)->getCalculatedValue();
 
                     $range = $range !== 0 ? $range : "";
                     $edition = $edition !== 0 ? $edition : "";