diff --git a/packages/hydrojudge/package.json b/packages/hydrojudge/package.json
index 291a996c7..3cd2fc786 100644
--- a/packages/hydrojudge/package.json
+++ b/packages/hydrojudge/package.json
@@ -1,7 +1,7 @@
 {
     "name": "@hydrooj/hydrojudge",
     "bin": "bin/hydrojudge.js",
-    "version": "2.12.8",
+    "version": "2.12.9",
     "main": "package.json",
     "author": "undefined <i@undefined.moe>",
     "repository": "https://github.com/hydro-dev/Hydro.git",
diff --git a/packages/hydrojudge/src/hosts/hydro.ts b/packages/hydrojudge/src/hosts/hydro.ts
index 4e815a196..728498604 100644
--- a/packages/hydrojudge/src/hosts/hydro.ts
+++ b/packages/hydrojudge/src/hosts/hydro.ts
@@ -182,7 +182,7 @@ export default class Hydro {
         const [domainId, pid] = source.split('/');
         const filePath = path.join(getConfig('cache_dir'), this.config.host, source);
         await fs.ensureDir(filePath);
-        if (!files?.length) throw new SystemError('Problem data not found.');
+        if (!files?.length) throw new FormatError('Problem data not found.');
         let etags: Record<string, string> = {};
         try {
             etags = JSON.parse(fs.readFileSync(path.join(filePath, 'etags')).toString());
diff --git a/packages/hydrojudge/src/judge/default.ts b/packages/hydrojudge/src/judge/default.ts
index 912cae90a..a3f6b9cd3 100644
--- a/packages/hydrojudge/src/judge/default.ts
+++ b/packages/hydrojudge/src/judge/default.ts
@@ -5,7 +5,7 @@ import { STATUS } from '@hydrooj/utils/lib/status';
 import { check, compileChecker } from '../check';
 import compile from '../compile';
 import { getConfig } from '../config';
-import { CompileError, SystemError } from '../error';
+import { CompileError, FormatError } from '../error';
 import { run } from '../sandbox';
 import signals from '../signals';
 import { parseFilename } from '../utils';
@@ -134,7 +134,7 @@ function judgeSubtask(subtask, sid: string) {
 }
 
 export const judge = async (ctx) => {
-    if (!ctx.config.subtasks.length) throw new SystemError('Problem data not found.');
+    if (!ctx.config.subtasks.length) throw new FormatError('Problem data not found.');
     ctx.next({ status: STATUS.STATUS_COMPILING });
     if (ctx.config.template) {
         if (ctx.config.template[ctx.lang]) {
diff --git a/packages/hydrojudge/src/judge/run.ts b/packages/hydrojudge/src/judge/run.ts
index 164ff1f16..fba3ca8b4 100644
--- a/packages/hydrojudge/src/judge/run.ts
+++ b/packages/hydrojudge/src/judge/run.ts
@@ -95,7 +95,7 @@ export const judge = async (ctx) => {
             status,
             time_ms: time_usage_ms,
             memory_kb: memory_usage_kb,
-            message: message.join('\n').substr(0, 1024000),
+            message: message.join('\n').substr(0, 102400),
         },
     });
     ctx.stat.done = new Date();
diff --git a/packages/hydrojudge/src/service.ts b/packages/hydrojudge/src/service.ts
index 049b2ff2f..2c9daf53d 100644
--- a/packages/hydrojudge/src/service.ts
+++ b/packages/hydrojudge/src/service.ts
@@ -76,7 +76,7 @@ async function postInit() {
     async function cacheOpen(source: string, files: any[]) {
         const filePath = path.join(getConfig('cache_dir'), source);
         await fs.ensureDir(filePath);
-        if (!files?.length) throw new SystemError('Problem data not found.');
+        if (!files?.length) throw new FormatError('Problem data not found.');
         let etags: Record<string, string> = {};
         try {
             etags = JSON.parse(fs.readFileSync(path.join(filePath, 'etags')).toString());