fix : product 判空

app/code/Joshine/Sales/Plugin/DefaultRendererPlugin.php

@@ -22,11 +22,13 @@ class DefaultRendererPlugin {
     }
 
     public function aroundGetColumnHtml(\Magento\Sales\Block\Adminhtml\Order\View\Items\Renderer\DefaultRenderer $defaultRenderer, \Closure $proceed,\Magento\Framework\DataObject $item, $column, $field=null) {
-
+        $result = '';
         if($column === 'image') {
+            if ($item->getProduct()) {
                 $img = $this->imageHelper->init($item->getProduct(), 'cart_page_product_thumbnail')->setImageFile($item->getProduct()->getImage())->resize(100)->getUrl();
                 $result = '<img src="'.$img.'" alt="'.$item->getName().'" />';
             }
+        }
         else {
             if($field) {
                 $result = $proceed($item,$column,$field);