fix

src/components/panel/api/magic-api-response-structure.vue

@@ -39,7 +39,7 @@ const doExpand = (item) => {
     }
 }
 const filteredTreeList = computed(() => {
-    if(!opened.value.responseBodyTree && opened.value.item.responseBodyDefinition){
+    if(!opened.value.responseBodyTree && opened.value?.item?.responseBodyDefinition){
         opened.value.responseBodyTree = definition2TreeList(opened.value.item.responseBodyDefinition)
     }
     return (opened.value.responseBodyTree || []).filter(it => it.display)