diff --git a/contents/bili.ts b/contents/bili.ts
index 1b12ca6..9eb40d4 100644
--- a/contents/bili.ts
+++ b/contents/bili.ts
@@ -15,8 +15,9 @@ chrome.runtime.onMessage.addListener((req, sender, send) => {
         return;
       }
 
-      const project = document.querySelector<HTMLDivElement>(".tagC-ip .tagC-ip-con").innerText;
-      const made = document.querySelector<HTMLDivElement>(".tagC-ip .tagC-ip-con-brand").innerText;
+      const project = document.querySelector<HTMLDivElement>(".tagC-ip .tagC-ip-con")?.innerText || "";
+      const made = document.querySelector<HTMLDivElement>(".tagC-ip .tagC-ip-con-brand")?.innerText || "";
+      const sale = document.querySelector<HTMLDivElement>(".item-complex:nth-child(4) .item-complex-value")?.innerText || "";
 
       const projectExp = new RegExp(`\s?${project}\s?`);
       const madeExp = new RegExp(`\s?${made}\s?`);
@@ -38,8 +39,8 @@ chrome.runtime.onMessage.addListener((req, sender, send) => {
       send({
         name,
         project: project.replace(":", "："),
-        made: document.querySelector<HTMLDivElement>(".tagC-ip .tagC-ip-con-brand").innerText,
-        sale: document.querySelector<HTMLDivElement>(".item-complex:nth-child(4) .item-complex-value").innerText.replace("-", "/"),
+        made,
+        sale: sale.replace("-", "/"),
         images,
         productId: new URLSearchParams(location.search).get("itemsId"),
       });