MAGETWO-39614: Error after customer logout if he matched customer segment with...

MAGETWO-39614: Error after customer logout if he matched customer segment with product from category is viewed condition

app/code/Magento/Reports/Model/Event/Observer.php

@@ -151,7 +151,7 @@ class Observer
         $productId = $observer->getEvent()->getProduct()->getId();
 
         $viewData['product_id'] = $productId;
-
+        $viewData['store_id']   = $this->_storeManager->getStore()->getId();
         if ($this->_customerSession->isLoggedIn()) {
             $viewData['customer_id'] = $this->_customerSession->getCustomerId();
         } else {