diff --git a/internal/logic/carv/unlock_chapter_logic.go b/internal/logic/carv/unlock_chapter_logic.go
index 74ffebf..73f19c8 100644
--- a/internal/logic/carv/unlock_chapter_logic.go
+++ b/internal/logic/carv/unlock_chapter_logic.go
@@ -59,13 +59,16 @@ func (l *UnlockChapterLogic) UnlockChapter(req *types.UnlockChapterReq) *types.C
 
 	gp, err := l.svcCtx.GameReportModel.FindMaxByEmail(l.ctx, req.Email)
 	if err != nil {
-		l.Errorw("find game report error", logx.Field("err", err), logx.Field("email", req.Email))
-		return &types.CarvResult{
-			Error: &types.Error{
-				Code:    int(errs.ErrDatabaseOperate),
-				Message: "system error",
-			},
+		if !errors.Is(err, model.ErrNotFound) {
+			l.Errorw("find game report error", logx.Field("err", err), logx.Field("email", req.Email))
+			return &types.CarvResult{
+				Error: &types.Error{
+					Code:    int(errs.ErrDatabaseOperate),
+					Message: "system error",
+				},
+			}
 		}
+		return &types.CarvResult{Result: &types.Result{IsValid: false}}
 	}
 
 	if gp.Chapter >= req.Chapter {
diff --git a/internal/model/nh_game_report_model.go b/internal/model/nh_game_report_model.go
index 35fbac6..0818489 100755
--- a/internal/model/nh_game_report_model.go
+++ b/internal/model/nh_game_report_model.go
@@ -48,10 +48,14 @@ GROUP BY
 `
 	var resp GameReport
 	err := m.conn.QueryRowCtx(ctx, &resp, query, email)
-	if err != nil && !errors.Is(err, sqlx.ErrNotFound) {
+	switch {
+	case err == nil:
+		return &resp, nil
+	case errors.Is(err, sqlx.ErrNotFound):
+		return nil, ErrNotFound
+	default:
 		return nil, err
 	}
-	return &resp, nil
 }
 
 // NewNhGameReportModel returns a model for the database table.