fix node not exist

@@ -265,11 +265,11 @@ export default {
         productSknList.push(ele.dataset.option);
 
         // 前后会有一个 <br /> 把这个BR去掉
-        if (ele.nextSibling.nodeName === 'BR') {
+        if (ele.nextSibling?.nodeName === 'BR') {
           ele.nextSibling.remove();
         }
 
-        if (ele.previousSibling.nodeName === 'BR') {
+        if (ele.previousSibling?.nodeName === 'BR') {
           ele.previousSibling.remove();
         }
       });

 {
   "name": "yoho-community-web",
-  "version": "6.9.11-beta43",
+  "version": "6.9.11-beta44",
   "private": true,
   "description": "A New Yohobuy Project With Express",
   "repository": {