diff --git a/Cargo.lock b/Cargo.lock
index afa8c00..e28e807 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -292,6 +292,7 @@ dependencies = [
  "iana-time-zone",
  "js-sys",
  "num-traits",
+ "serde",
  "wasm-bindgen",
  "windows-targets 0.52.4",
 ]
@@ -474,6 +475,7 @@ dependencies = [
 name = "domain"
 version = "0.1.0"
 dependencies = [
+ "chrono",
  "library",
  "serde",
  "sqlx",
diff --git a/domain/Cargo.toml b/domain/Cargo.toml
index 2472994..c241f98 100644
--- a/domain/Cargo.toml
+++ b/domain/Cargo.toml
@@ -9,5 +9,6 @@ edition = "2021"
 serde = { workspace = true, features = ["derive"] }
 sqlx = { workspace = true, features = ["postgres", "uuid", "macros", "sqlx-macros", "chrono"] }
 validator = { workspace = true, features = ["derive"] }
+chrono = { workspace = true, features = ["serde"]}
 
 library = { path = "../library" }
\ No newline at end of file
diff --git a/domain/src/db_result.rs b/domain/src/db_result.rs
index 6cc35fc..f622676 100644
--- a/domain/src/db_result.rs
+++ b/domain/src/db_result.rs
@@ -1,3 +1,3 @@
 pub struct CountResult {
-    pub count: u64
+    pub count: Option<i64>
 }
\ No newline at end of file
diff --git a/domain/src/entities/feedback.rs b/domain/src/entities/feedback.rs
index b189ba8..d3d4269 100644
--- a/domain/src/entities/feedback.rs
+++ b/domain/src/entities/feedback.rs
@@ -1,3 +1,4 @@
+use chrono::{NaiveDateTime, Utc};
 use sqlx::{FromRow, PgPool};
 use sqlx::types::chrono::{self, DateTime};
 use crate::db_result::CountResult;
@@ -7,7 +8,7 @@ pub struct Feedback {
     pub id: u64,
     pub user_id: u64,
     pub content: String,
-    pub created_at: DateTime<chrono::Utc>,
+    pub created_at: NaiveDateTime,
 }
 
 impl Feedback {
@@ -27,7 +28,7 @@ impl Feedback {
     }
 
     pub async fn add_feedback(feedback: &mut Feedback, db_pool: &PgPool) -> Result<Feedback, sqlx::Error> {
-        feedback.created_at = DateTime::default().to_utc();
+        feedback.created_at = Utc::now().naive_utc();
         sqlx::query_as!(
             Feedback,
             r#"insert into feedback
diff --git a/domain/src/entities/player_info.rs b/domain/src/entities/player_info.rs
index 5f0bdcb..bff39f7 100644
--- a/domain/src/entities/player_info.rs
+++ b/domain/src/entities/player_info.rs
@@ -1,16 +1,17 @@
+use chrono::{NaiveDateTime, Utc};
 use sqlx::{FromRow, PgPool, QueryBuilder};
 use sqlx::types::chrono::{self, DateTime};
 use library::db;
 
 #[derive(Debug, Clone, FromRow, serde::Serialize)]
 pub struct PlayerInfo {
-    pub id: Option<u64>,
+    pub id: u64,
     pub username: String,
     pub email: String,
     pub platform_id: String,
     pub user_type: String,
     pub country_code: String,
-    pub created_at: DateTime<chrono::Utc>,
+    pub created_at: NaiveDateTime,
 }
 
 impl PlayerInfo {
@@ -25,7 +26,7 @@ impl PlayerInfo {
     }
 
     pub async fn add_player_info(player_info: &mut PlayerInfo, db_pool: &PgPool) -> Result<PlayerInfo, sqlx::Error> {
-        player_info.created_at = DateTime::default().to_utc();
+        player_info.created_at = Utc::now().naive_utc();
         sqlx::query_as!(
             PlayerInfo,
             r#"
diff --git a/library/src/resp/pageable.rs b/library/src/resp/pageable.rs
index 46ede8e..23c3b06 100644
--- a/library/src/resp/pageable.rs
+++ b/library/src/resp/pageable.rs
@@ -4,11 +4,11 @@ use serde::Serialize;
 #[derive(Debug, Serialize)]
 pub struct Pageable<T> where T: Debug + Serialize {
     pub data: Vec<T>,
-    pub total: u64,
+    pub total: i64,
 }
 
 impl <T> Pageable<T> where T: Debug + Serialize {
-    pub fn new(data: Vec<T>, total: u64) -> Self {
+    pub fn new(data: Vec<T>, total: i64) -> Self {
         Self {
             data,
             total,
diff --git a/service/src/feedback.rs b/service/src/feedback.rs
index 2b755a0..6bef325 100644
--- a/service/src/feedback.rs
+++ b/service/src/feedback.rs
@@ -19,13 +19,13 @@ pub async fn get_feedback_list_by_page(page: u64, page_size: u64) -> ResResult<R
 }
 
 /// 获取反馈信息总数
-async fn get_feedback_count() -> u64 {
+async fn get_feedback_count() -> i64 {
     let count = Feedback::count_feedback(db!()).await.ok();
     if count.is_none() {
         tracing::error!("反馈信息为空");
         return 0;
     }
-    count.unwrap().count
+    count.unwrap().count.unwrap()
 }
 
 /// 添加反馈信息