diff --git a/backend/package.json b/backend/package.json
index 6b16158..d275aac 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.14.167",
+  "version": "2.14.169",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and ShadowRocket.",
   "main": "src/main.js",
   "scripts": {
diff --git a/backend/src/restful/settings.js b/backend/src/restful/settings.js
index d80f48e..83c7874 100644
--- a/backend/src/restful/settings.js
+++ b/backend/src/restful/settings.js
@@ -19,6 +19,7 @@ async function getSettings(req, res) {
     if (!settings.avatarUrl) await updateGitHubAvatar();
     if (!settings.artifactStore) await updateArtifactStore();
     success(res, settings);
+    // TODO: 缺错误处理 前端也缺
 }
 
 async function updateSettings(req, res) {
@@ -31,6 +32,7 @@ async function updateSettings(req, res) {
     await updateGitHubAvatar();
     await updateArtifactStore();
     success(res, newSettings);
+    // TODO: 缺错误处理 前端也缺
 }
 
 export async function updateGitHubAvatar() {
@@ -70,17 +72,20 @@ export async function updateArtifactStore() {
         });
 
         try {
-            const gistId = await manager.locate();
-            if (gistId !== -1) {
-                settings.artifactStore = `https://gist.github.com/${githubUser}/${gistId}`;
-                $.write(settings, SETTINGS_KEY);
+            const gist = await manager.locate();
+            if (gist?.html_url) {
+                $.log(`找到 Sub-Store Gist: ${gist.html_url}`);
+                // 只需要保证 token 是对的, 现在 username 错误只会导致头像错误
+                settings.artifactStore = gist.html_url;
+                settings.artifactStoreStatus = 'VALID';
+            } else {
+                $.error(`找不到 Sub-Store Gist`);
+                settings.artifactStoreStatus = 'NOT FOUND';
             }
         } catch (err) {
-            $.error(
-                `Failed to fetch artifact store for User: ${githubUser}. Reason: ${
-                    err.message ?? err
-                }`,
-            );
+            $.error(`查找 Sub-Store Gist 时发生错误: ${err.message ?? err}`);
+            settings.artifactStoreStatus = 'ERROR';
         }
+        $.write(settings, SETTINGS_KEY);
     }
 }
diff --git a/backend/src/utils/gist.js b/backend/src/utils/gist.js
index 8504e78..cea9706 100644
--- a/backend/src/utils/gist.js
+++ b/backend/src/utils/gist.js
@@ -32,10 +32,10 @@ export default class Gist {
             const gists = JSON.parse(response.body);
             for (let g of gists) {
                 if (g.description === this.key) {
-                    return g.id;
+                    return g;
                 }
             }
-            return -1;
+            return;
         });
     }
 
@@ -44,9 +44,15 @@ export default class Gist {
             return Promise.reject('未提供需上传的文件');
         }
 
-        const id = await this.locate();
+        const gist = await this.locate();
 
-        if (id === -1) {
+        if (gist?.id) {
+            // update an existing gist
+            return this.http.patch({
+                url: `/gists/${gist.id}`,
+                body: JSON.stringify({ files }),
+            });
+        } else {
             // create a new gist for backup
             return this.http.post({
                 url: '/gists',
@@ -56,29 +62,23 @@ export default class Gist {
                     files,
                 }),
             });
-        } else {
-            // update an existing gist
-            return this.http.patch({
-                url: `/gists/${id}`,
-                body: JSON.stringify({ files }),
-            });
         }
     }
 
     async download(filename) {
-        const id = await this.locate();
-        if (id === -1) {
-            return Promise.reject('未找到Gist备份！');
-        } else {
+        const gist = await this.locate();
+        if (gist?.id) {
             try {
                 const { files } = await this.http
-                    .get(`/gists/${id}`)
+                    .get(`/gists/${gist.id}`)
                     .then((resp) => JSON.parse(resp.body));
                 const url = files[filename].raw_url;
                 return await this.http.get(url).then((resp) => resp.body);
             } catch (err) {
                 return Promise.reject(err);
             }
+        } else {
+            return Promise.reject('找不到 Sub-Store Gist');
         }
     }
 }