diff --git a/modules/contrib/simple_access/simple_access.module b/modules/contrib/simple_access/simple_access.module
index 32cc2b97..0e45d8fd 100755
--- a/modules/contrib/simple_access/simple_access.module
+++ b/modules/contrib/simple_access/simple_access.module
@@ -336,12 +336,12 @@ function simple_access_form($type_id, $access, $admin = FALSE) {
     'profiles' => [
       '#type' => 'simple_access_profiles',
       '#title' => t('Profiles'),
-      '#default_value' => $access['profiles'],
+      '#default_value' => !empty($access['profiles']) ? $access['profiles'] : [],
       '#node_type' => $type_id,
     ],
     'groups' => [
       '#type' => 'simple_access_groups',
-      '#default_value' => $access['groups'],
+      '#default_value' => !empty($access['groups']) ? $access['groups'] : [],
       '#override_privilege' => $admin,
       '#node_type' => $type_id,
     ],
diff --git a/modules/contrib/simple_access/src/Element/SimpleAccessGroups.php b/modules/contrib/simple_access/src/Element/SimpleAccessGroups.php
index 6c05291a..daf16088 100755
--- a/modules/contrib/simple_access/src/Element/SimpleAccessGroups.php
+++ b/modules/contrib/simple_access/src/Element/SimpleAccessGroups.php
@@ -71,7 +71,7 @@ public static function processSimpleAccessGroups(&$element, FormStateInterface $
 
       $privilege = $element['#override_privilege'] || $group->canManageAccess($element['#node_type']);
 
-      $element['#default_value'][$group->id()] = is_array($element['#default_value'][$group->id()]) ? $element['#default_value'][$group->id()] : [];
+      $element['#default_value'][$group->id()] = !empty($element['#default_value'][$group->id()]) ? $element['#default_value'][$group->id()] : [];
       $element['#default_value'][$group->id()] += [
         'view' => 0,
         'update' => 0,
diff --git a/modules/contrib/simple_access/src/Entity/SimpleAccessGroup.php b/modules/contrib/simple_access/src/Entity/SimpleAccessGroup.php
index a34650eb..b6044307 100755
--- a/modules/contrib/simple_access/src/Entity/SimpleAccessGroup.php
+++ b/modules/contrib/simple_access/src/Entity/SimpleAccessGroup.php
@@ -121,7 +121,7 @@ public function canManageAccess($type_id, AccountProxyInterface $account = NULL)
    * {@inheritdoc}
    */
   public function buildGrant(AccountInterface $account, $op) {
-    foreach (array_filter($this->access) as $rid) {
+    foreach (array_filter(is_array($this->access) ? $this->access : []) as $rid) {
       if ($this->id == 'owner' || in_array($rid, $account->getRoles())) {
         return ['simple_access_group:' . $this->id() => [$this->id == 'owner' ? $account->id() : '0']];
       }