From 814ca5bbac7ad1657c845647319692f16721b24a Mon Sep 17 00:00:00 2001
From: Carsten Schmitz <carsten.schmitz@limesurvey.org>
Date: Thu, 4 Nov 2021 16:41:18 +0100
Subject: [PATCH] Fixed issue: Upgrade fails if token attribute column does not
 physically exist in participant table anymore

---
 application/helpers/update/updatedb_helper.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/application/helpers/update/updatedb_helper.php b/application/helpers/update/updatedb_helper.php
index c849e81b905..ed5b3408e83 100644
--- a/application/helpers/update/updatedb_helper.php
+++ b/application/helpers/update/updatedb_helper.php
@@ -5197,7 +5197,7 @@ function decryptParticipantTables450($oDB)
             foreach ($tokens as $token) {
                 $recryptedToken = [];
                 foreach ($columnEncryptions as $column => $value) {
-                    if ($columnEncryptions[$column]['encrypted'] === 'Y') {
+                    if ($columnEncryptions[$column]['encrypted'] === 'Y' && isset($token[$column])) {
                         $decryptedTokenColumn = LSActiveRecord::decryptSingleOld($token[$column]);
                         $recryptedToken[$column] = LSActiveRecord::encryptSingle($decryptedTokenColumn);
                     }