From a13781d57d69e0e56218cf027f8e7695c5df1998 Mon Sep 17 00:00:00 2001
From: Amit sharma <amit.sharma322@webkul.in>
Date: Thu, 11 Dec 2025 12:30:36 +0530
Subject: [PATCH] Fixed: notices in the admin stats (Sales and orders tab )
 while trying to export the data using the CSV export.

---
 modules/statssales/statssales.php | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/modules/statssales/statssales.php b/modules/statssales/statssales.php
index 0b89b0d0d..de828d507 100644
--- a/modules/statssales/statssales.php
+++ b/modules/statssales/statssales.php
@@ -310,10 +310,14 @@ class StatsSales extends ModuleGraph
     {
         $result = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($this->query.$this->getDate().$this->query_group_by.$this->query_having_filter);
         foreach ($result as $row) {
+            $days = (int)substr($row['invoice_date'], 8, 2);
+            if (!isset($this->_values[$days])) {
+                $this->_values[$days] = 0;
+            }
             if ($this->option == 1) {
-                $this->_values[(int)substr($row['invoice_date'], 8, 2)] += 1;
+                $this->_values[$days] += 1;
             } else {
-                $this->_values[(int)substr($row['invoice_date'], 8, 2)] += $row['total_revenue'];
+                $this->_values[$days] += $row['total_revenue'];
             }
         }
     }