src/pages/Ticket/Card/BasicData/BasicDataTable.vue

@@ -113,7 +113,7 @@ const totalNewPrice = computed(() => {
 });
 
 const totalDifference = computed(() => {
-    return rows.value.reduce((acc, item) => acc + item.component.difference, 0);
+    return rows.value.reduce((acc, item) => acc + item.component?.difference || 0, 0);
 });
 const showMovablecolumn = computed(() => (haveDifferences.value > 0 ? ['movable'] : []));
 const haveDifferences = computed(() => _ticketData.value.sale.haveDifferences);