diff --git a/src/components/data/InAppPurchaseDetails/index.vue b/src/components/data/InAppPurchaseDetails/index.vue
index 2f61e70..746e7fd 100644
--- a/src/components/data/InAppPurchaseDetails/index.vue
+++ b/src/components/data/InAppPurchaseDetails/index.vue
@@ -73,7 +73,7 @@
             <div class="blockquote">{{ $t('pages.inAppPurchaseDetails.section.statusFlow') }}</div>
             <div class="content">
               <el-steps align-center :space="200" :active="order.details.statusSteps.length" finish-status="success" style="margin: 10px 0px;">
-                <el-step v-for="(item, index) in order.details.statusSteps" :key="index" :title="getOrderStatus(item.status).label" :description="item.createTime" />
+                <el-step v-for="(item, index) in order.details.statusSteps" :key="index" :title="getOrderStatus(item.status).label" :description="getElementText(item.createTime)" />
               </el-steps>
             </div>
           </div>
@@ -127,7 +127,7 @@
                   v-for="(item, index) in order.details.payNotices"
                   :key="index"
                   placement="top"
-                  :timestamp="item.createTime"
+                  :timestamp="getElementText(item.createTime)"
                 >
                   <div class="event-info">
                     <div class="event-info-item">{{ $t('pages.inAppPurchaseDetails.label.eventId') }}: {{ item.eventId }}</div>
@@ -243,6 +243,12 @@ export default {
     getOrderFactory(details) {
       return (details && details.factory) || {}
     },
+    getElementText(value) {
+      if (value === undefined || value === null) {
+        return ''
+      }
+      return String(value)
+    },
     loadInAppPurchase() {
       const that = this
       that.orderLoading = true
diff --git a/src/main.js b/src/main.js
index f7db042..711c287 100644
--- a/src/main.js
+++ b/src/main.js
@@ -41,8 +41,9 @@ if (isMock()) {
 
 // initialize ElementUI and runtime locale
 const DEFAULT_TABLE_COLUMN_MIN_WIDTH = 120
+const TABLE_COLUMN_MIN_WIDTH_PATCH_FLAG = '__defaultMinWidthPatched__'
 
-if (TableColumn && TableColumn.methods && !TableColumn.methods.__defaultMinWidthPatched__) {
+if (TableColumn && TableColumn.methods && !TableColumn[TABLE_COLUMN_MIN_WIDTH_PATCH_FLAG]) {
   const originalSetColumnWidth = TableColumn.methods.setColumnWidth
   TableColumn.methods.setColumnWidth = function(column) {
     const nextColumn = originalSetColumnWidth.call(this, column)
@@ -57,7 +58,11 @@ if (TableColumn && TableColumn.methods && !TableColumn.methods.__defaultMinWidth
 
     return nextColumn
   }
-  TableColumn.methods.__defaultMinWidthPatched__ = true
+  delete TableColumn.methods[TABLE_COLUMN_MIN_WIDTH_PATCH_FLAG]
+  Object.defineProperty(TableColumn, TABLE_COLUMN_MIN_WIDTH_PATCH_FLAG, {
+    value: true,
+    configurable: true
+  })
 }
 
 Vue.use(ElementUI, { size: Cookies.get('size') || 'medium' })