From 59a2809ed0130ff0ca81c46c083d08c6ab5b23c5 Mon Sep 17 00:00:00 2001
From: bbdoc <bbdoc.mail@gmail.com>
Date: Mon, 8 Jan 2024 22:12:22 +0100
Subject: [PATCH] Correct unset variable

---
 header.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/header.php b/header.php
index 5ac44c0..f1ad498 100644
--- a/header.php
+++ b/header.php
@@ -155,7 +155,9 @@
             $redirect_page = "unregistered.php";
     }
 
-    if (isset($enable_admin_dis) && $enable_admin_dis == "False" && $_SESSION['id'] <> $_SESSION['admin_id'])
+    if (!isset($subs_clause)) { $subs_clause .= ""; }
+
+    if (isset($enable_admin_dis) && $enable_admin_dis == "False" && isset($_SESSION['admin_id']) && $_SESSION['id'] <> $_SESSION['admin_id'])
     {
 	    $subs_clause .= " AND admin_disable = 0";
     }