diff --git a/src/bilibili/credential.rs b/src/bilibili/credential.rs
index 18a137d..e86f958 100644
--- a/src/bilibili/credential.rs
+++ b/src/bilibili/credential.rs
@@ -45,7 +45,7 @@ impl Credential {
             .error_for_status()?
             .json::<serde_json::Value>()
             .await?;
-        let (code, msg) = match (res["code"].as_u64(), res["message"].as_str()) {
+        let (code, msg) = match (res["code"].as_i64(), res["message"].as_str()) {
             (Some(code), Some(msg)) => (code, msg),
             _ => bail!("no code or message found"),
         };
@@ -117,7 +117,7 @@ JNrRuoEUXpabUzGB8QIDAQAB
         // 必须在 .json 前取出 headers，否则 res 会被消耗
         let headers = std::mem::take(res.headers_mut());
         let res = res.json::<serde_json::Value>().await?;
-        let (code, msg) = match (res["code"].as_u64(), res["message"].as_str()) {
+        let (code, msg) = match (res["code"].as_i64(), res["message"].as_str()) {
             (Some(code), Some(msg)) => (code, msg),
             _ => bail!("no code or message found"),
         };
@@ -171,7 +171,7 @@ JNrRuoEUXpabUzGB8QIDAQAB
             .error_for_status()?
             .json::<serde_json::Value>()
             .await?;
-        let (code, msg) = match (res["code"].as_u64(), res["message"].as_str()) {
+        let (code, msg) = match (res["code"].as_i64(), res["message"].as_str()) {
             (Some(code), Some(msg)) => (code, msg),
             _ => bail!("no code or message found"),
         };
diff --git a/src/bilibili/error.rs b/src/bilibili/error.rs
index c34e7d8..24fed5c 100644
--- a/src/bilibili/error.rs
+++ b/src/bilibili/error.rs
@@ -5,5 +5,5 @@ pub enum BiliError {
     #[error("risk control occurred")]
     RiskControlOccurred,
     #[error("request failed, status code: {0}, message: {1}")]
-    RequestFailed(u64, String),
+    RequestFailed(i64, String),
 }
diff --git a/src/bilibili/favorite_list.rs b/src/bilibili/favorite_list.rs
index 4ffc07a..12e840a 100644
--- a/src/bilibili/favorite_list.rs
+++ b/src/bilibili/favorite_list.rs
@@ -58,7 +58,7 @@ impl<'a> FavoriteList<'a> {
             .error_for_status()?
             .json::<serde_json::Value>()
             .await?;
-        let (code, msg) = match (res["code"].as_u64(), res["message"].as_str()) {
+        let (code, msg) = match (res["code"].as_i64(), res["message"].as_str()) {
             (Some(code), Some(msg)) => (code, msg),
             _ => bail!("no code or message found"),
         };
@@ -85,7 +85,7 @@ impl<'a> FavoriteList<'a> {
             .error_for_status()?
             .json::<serde_json::Value>()
             .await?;
-        let (code, msg) = match (res["code"].as_u64(), res["message"].as_str()) {
+        let (code, msg) = match (res["code"].as_i64(), res["message"].as_str()) {
             (Some(code), Some(msg)) => (code, msg),
             _ => bail!("no code or message found"),
         };
diff --git a/src/bilibili/mod.rs b/src/bilibili/mod.rs
index dd18206..7700cfe 100644
--- a/src/bilibili/mod.rs
+++ b/src/bilibili/mod.rs
@@ -1,6 +1,7 @@
 pub use analyzer::{AudioQuality, BestStream, FilterOption, PageAnalyzer, VideoCodecs, VideoQuality};
 pub use client::{BiliClient, Client};
 pub use credential::Credential;
+pub use error::BiliError;
 pub use favorite_list::{FavoriteList, FavoriteListInfo, VideoInfo};
 pub use video::{PageInfo, Video};
 
diff --git a/src/bilibili/video.rs b/src/bilibili/video.rs
index 76b93da..307ee89 100644
--- a/src/bilibili/video.rs
+++ b/src/bilibili/video.rs
@@ -59,7 +59,7 @@ impl<'a> Video<'a> {
             .error_for_status()?
             .json::<serde_json::Value>()
             .await?;
-        let (code, msg) = match (res["code"].as_u64(), res["message"].as_str()) {
+        let (code, msg) = match (res["code"].as_i64(), res["message"].as_str()) {
             (Some(code), Some(msg)) => (code, msg),
             _ => bail!("no code or message found"),
         };
@@ -79,7 +79,7 @@ impl<'a> Video<'a> {
             .error_for_status()?
             .json::<serde_json::Value>()
             .await?;
-        let (code, msg) = match (res["code"].as_u64(), res["message"].as_str()) {
+        let (code, msg) = match (res["code"].as_i64(), res["message"].as_str()) {
             (Some(code), Some(msg)) => (code, msg),
             _ => bail!("no code or message found"),
         };
@@ -106,7 +106,7 @@ impl<'a> Video<'a> {
             .error_for_status()?
             .json::<serde_json::Value>()
             .await?;
-        let (code, msg) = match (res["code"].as_u64(), res["message"].as_str()) {
+        let (code, msg) = match (res["code"].as_i64(), res["message"].as_str()) {
             (Some(code), Some(msg)) => (code, msg),
             _ => bail!("no code or message found"),
         };
diff --git a/src/error.rs b/src/error.rs
new file mode 100644
index 0000000..04f46ed
--- /dev/null
+++ b/src/error.rs
@@ -0,0 +1,5 @@
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+#[error("Bilibili api request too frequently, abort all tasks and try again later")]
+pub struct DownloadAbortError();
diff --git a/src/lib.rs b/src/lib.rs
index 5169314..594d15a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -3,3 +3,4 @@ pub mod config;
 pub mod core;
 pub mod database;
 pub mod downloader;
+pub mod error;
diff --git a/src/main.rs b/src/main.rs
index ea9bfa4..eeecdb2 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,5 @@
 use bili_sync::bilibili::BiliClient;
-use bili_sync::core::command::process_favorite;
+use bili_sync::core::command::process_favorite_list;
 use bili_sync::database::{database_connection, migrate_database};
 use log::error;
 
@@ -24,7 +24,7 @@ async fn main() -> ! {
             anchor = chrono::Local::now().date_naive();
         }
         for (fid, path) in &favorites {
-            let res = process_favorite(&bili_client, fid, path, &connection).await;
+            let res = process_favorite_list(&bili_client, fid, path, &connection).await;
             if let Err(e) = res {
                 error!("Error: {e}");
             }