diff --git a/packages/hydrooj/package.json b/packages/hydrooj/package.json
index da97151de..e09ad5bbd 100644
--- a/packages/hydrooj/package.json
+++ b/packages/hydrooj/package.json
@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.13.60",
+    "version": "2.13.61",
     "bin": "bin/hydrooj.js",
     "main": "dist/loader.js",
     "typings": "dist/loader.d.ts",
diff --git a/packages/hydrooj/src/lib/i18n.ts b/packages/hydrooj/src/lib/i18n.ts
index 6352cfc7b..907cc3ef6 100644
--- a/packages/hydrooj/src/lib/i18n.ts
+++ b/packages/hydrooj/src/lib/i18n.ts
@@ -43,8 +43,9 @@ String.prototype.rawformat = function rawFormat(object) {
 };
 
 String.prototype.translate = function translate(...languages: string[]) {
-    if (languages.length === 0) languages = ['zh_CN'];
+    if (!languages.length) languages = ['zh_CN'];
     for (const language of languages) {
+        if (!language) continue;
         if (locales[language]) {
             if (locales[language][this] !== undefined) return locales[language][this];
         }
diff --git a/packages/hydrooj/src/model/training.ts b/packages/hydrooj/src/model/training.ts
index a9bc14b6d..a67475979 100644
--- a/packages/hydrooj/src/model/training.ts
+++ b/packages/hydrooj/src/model/training.ts
@@ -14,10 +14,10 @@ export function getMultiStatus(domainId: string, query: FilterQuery<TrainingDoc>
 
 export async function getListStatus(domainId: string, uid: number, tids: ObjectID[]) {
     const tsdocs = await getMultiStatus(
-        domainId, { uid, tid: { $in: Array.from(new Set(tids)) } },
+        domainId, { uid, docId: { $in: Array.from(new Set(tids)) } },
     ).toArray();
     const r = {};
-    for (const tsdoc of tsdocs) r[tsdoc.pid] = tsdoc;
+    for (const tsdoc of tsdocs) r[tsdoc.docId] = tsdoc;
     return r;
 }