fix cache

internal/rpc/user/user.go

@@ -154,7 +154,7 @@ func (s *userServer) GetPaginationUsers(ctx context.Context, req *pbuser.GetPagi
 	}
 	resp.Total = int32(total)
 	resp.Users, err = (*convert.DBUser)(nil).DB2PB(usersDB)
-	return resp, nil
+	return resp, err
 }
 
 // ok

pkg/common/db/cache/rockscache.go

@@ -110,12 +110,14 @@ func batchGetCache[T any](ctx context.Context, rcClient *rockscache.Client, keys
 		return nil, err
 	}
 	for _, v := range batchMap {
-		var t T
+		if v != "" {
-		err = json.Unmarshal([]byte(v), &t)
+			var t T
-		if err != nil {
+			err = json.Unmarshal([]byte(v), &t)
-			return nil, utils.Wrap(err, "unmarshal failed")
+			if err != nil {
+				return nil, utils.Wrap(err, "unmarshal failed")
+			}
+			tArrays = append(tArrays, t)
 		}
-		tArrays = append(tArrays, t)
 	}
 	return tArrays, nil
 }