diff --git a/packages/center/handler.ts b/packages/center/handler.ts
index 2e1b641c..37aca75b 100644
--- a/packages/center/handler.ts
+++ b/packages/center/handler.ts
@@ -63,11 +63,11 @@ class ProxySendRequestHandler extends Handler {
         let res = await superagent.post(`${url}d/${domainId}/problem/send`)
             .send({ operation: 'info', token: tokenId })
             .catch((e) => e);
-        if (res instanceof Error) throw new RemoteOnlineJudgeError(res.message);
+        if (res instanceof Error) throw new RemoteOnlineJudgeError(`[Post Target/Send/Info] ${res.message}`);
         res = await superagent.post(`${endpoint}/problem/receive`).send({
             operation: 'request', url: `${url}d/${domainId}/problem/send`, tokenId, expire,
         }).catch((e) => e);
-        if (res instanceof Error) throw new RemoteOnlineJudgeError(res.message);
+        if (res instanceof Error) throw new RemoteOnlineJudgeError(`[Post Target/Receive/Request] ${res.message}`);
         this.response.body = { code: 0 };
     }
 }
diff --git a/packages/center/package.json b/packages/center/package.json
index d21005ff..2a4f38f2 100644
--- a/packages/center/package.json
+++ b/packages/center/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@hydrooj/center",
-    "version": "0.0.2",
+    "version": "0.0.3",
     "main": "package.json",
     "repository": "https://github.com/hydro-dev/Hydro.git",
     "author": "undefined <i@undefined.moe>",
diff --git a/packages/hydrooj/package.json b/packages/hydrooj/package.json
index 53053f09..57dad69a 100644
--- a/packages/hydrooj/package.json
+++ b/packages/hydrooj/package.json
@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.26.24",
+    "version": "2.26.25",
     "bin": "bin/hydrooj.js",
     "main": "dist/loader.js",
     "typings": "dist/loader.d.ts",
diff --git a/packages/hydrooj/src/handler/remote.ts b/packages/hydrooj/src/handler/remote.ts
index 29f85f90..52014d84 100644
--- a/packages/hydrooj/src/handler/remote.ts
+++ b/packages/hydrooj/src/handler/remote.ts
@@ -57,7 +57,7 @@ export class ProblemSendHandler extends Handler {
                 .send({
                     operation: 'request', url: `${url}d/${domainId}/problem/send`, tokenId, expire,
                 }).catch(logAndReturn(logger));
-        if (res instanceof Error) throw new RemoteOnlineJudgeError(res.message);
+        if (res instanceof Error) throw new RemoteOnlineJudgeError(`[Post Target/Request] ${res.message}`);
         this.back();
     }
 
@@ -123,7 +123,7 @@ export class ProblemReceiveHandler extends Handler {
         const res = await superagent.post(url)
             .send({ operation: 'info', token: tokenId })
             .catch(logAndReturn(logger));
-        if (res instanceof Error) throw new RemoteOnlineJudgeError(res.message);
+        if (res instanceof Error) throw new RemoteOnlineJudgeError(`[Post Origin/Info] ${res.message}`);
         const [id] = await token.add(token.TYPE_IMPORT, expire, {
             domainId, tokenId, source: url, pdocs: res.body.pdocs, pids: res.body.pids,
         });
@@ -154,7 +154,7 @@ export class ProblemReceiveHandler extends Handler {
             token: data.tokenId,
             pids: filterPid.length ? filterPid.map((i) => (+i ? +i : i)) : data.pids,
         }).catch(logAndReturn(logger));
-        if (res instanceof Error) throw new RemoteOnlineJudgeError(res.message);
+        if (res instanceof Error) throw new RemoteOnlineJudgeError(`[Post Origin/Fetch] ${res.message}`);
         const pids = [];
         const { pdocs } = res.body;
         const files = res.body.links;