update

app/Http/Controllers/CmsContentTemplateSetController.php

@@ -89,7 +89,7 @@ class CmsContentTemplateSetController extends BaseController
         }
         $product_list = $this->cmsContentSetTemplate->getProducts($request->all());
         if (count($product_list) > 0) {
-            foreach ($product_list->toArray() as $k => $v) {
+            foreach ($product_list as $k => $v) {
                 $product_list[$k]['subject_title'] = $get_subject->title ?? '';
                 $product_list[$k]['subject_img'] = $get_subject->subject_img ?? '';
             }