Update SettingsForm.php

Closed

src/Form/SettingsForm.php

@@ -144,9 +144,12 @@ class SettingsForm extends ConfigFormBase {
    */
   public function submitForm(array &$form, FormStateInterface $form_state) {
     parent::submitForm($form, $form_state);
+    $weightSettings = $form_state->getValue('weight_settings');
     $config = $this->config('entity_sort.settings');
-    $config->set('weight_fields', array_filter($form_state->getValue('weight_settings')));
-    $config->save();
+    if (is_array($weightSettings)) {
+      $config->set('weight_fields', array_filter($form_state->getValue('weight_settings')));
+      $config->save();
+    }
   }
 
   /**