diff --git a/Helper/Data.php b/Helper/Data.php
index 4814772..60ff249 100644
--- a/Helper/Data.php
+++ b/Helper/Data.php
@@ -114,7 +114,9 @@ public function getConfigDisplayValue($path, $contextScope, $contextScopeId) {
 
             $optionsByValue = [];
             foreach($field->getOptions() as $option) {
-                $optionsByValue[$option['value']] = $option;
+                if (isset($option['value'])) {
+                    $optionsByValue[$option['value']] = $option;
+                }
             }
 
             $values = explode(',', $value);