From 53d0665aabf817c0d66685fc9da44ab81f73d9d0 Mon Sep 17 00:00:00 2001
From: Michael Boesherz <michael.boesherz@numero2.de>
Date: Mon, 5 Dec 2022 14:36:32 +0100
Subject: [PATCH] check if varValue is array and key exists, maybe fixes #36

---
 src/Resources/contao/widgets/OpenGraphProperties.php | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/Resources/contao/widgets/OpenGraphProperties.php b/src/Resources/contao/widgets/OpenGraphProperties.php
index 8293639..fc7574f 100644
--- a/src/Resources/contao/widgets/OpenGraphProperties.php
+++ b/src/Resources/contao/widgets/OpenGraphProperties.php
@@ -372,9 +372,13 @@ protected function generateWidgetsDCA( $value=null ): array {
 
             foreach( $value as $keyRow => $row ) {
 
-                if( !array_key_exists($row[0], $options) ){
-                    unset($this->varValue[$keyRow]);
-                    $removedValues = true;
+                if( !array_key_exists($row[0], $options) ) {
+
+                    if( is_array($this->varValue) && array_key_exists($keyRow, $this->varValue) ) {
+                        unset($this->varValue[$keyRow]);
+                        $removedValues = true;
+                    }
+
                     continue;
                 }