no message

src/views/valueAddedService/orderSettleManag/pages/offline.vue

@@ -217,7 +217,9 @@ export default {
     wxPay(id) {
       increOrderSettleGeneratePayCode({ id }).then(res => {
         this.codeUrl = res.data.codeUrl
-        this.$refs.payQRCode.innerHTML = '';
+        if(this.$refs?.payQRCode?.innerHTML){
+          this.$refs.payQRCode.innerHTML = '';
+        }
         this.$nextTick(() => {
           new QRCode(this.$refs.payQRCode, {
             text: res.data.codeUrl,