Issue #3245013 by daveiano, eabquina: Error: Call to a member function bundle() on null

paragraphs_sets.module

@@ -290,6 +290,9 @@ function paragraphs_sets_field_widget_multivalue_form_alter(array &$elements, Fo
       if ($element) {
         // Set paragraphs bundle.
         $widget_state = ParagraphsSets::getWidgetState($element['#field_parents'], $field_name, $form_state);
+        if (!is_array($widget_state['paragraphs'])) {
+          continue;
+        }
         $element['#paragraphs_bundle'] = $widget_state['paragraphs'][$delta]['entity']->bundle();
 
         // Allow modules to alter the field widget form element.