diff --git a/app/module/ppid_data_categories/mapper/ppid_data_categories.mapper.go b/app/module/ppid_data_categories/mapper/ppid_data_categories.mapper.go
index 0b6b6b7..f346caa 100644
--- a/app/module/ppid_data_categories/mapper/ppid_data_categories.mapper.go
+++ b/app/module/ppid_data_categories/mapper/ppid_data_categories.mapper.go
@@ -9,8 +9,10 @@ import (
 func PpidDataCategoriesResponseMapper(ppidDataCategoriesReq *entity.PpidDataCategories, childPpidDataCategoriesReq []*entity.PpidDataCategories) (ppidDataCategoriesRes *res.PpidDataCategoriesResponse) {
 	if ppidDataCategoriesReq != nil {
 		var childPpidDataCategoriesRes []*res.PpidDataCategoriesResponse
-		for _, item := range childPpidDataCategoriesReq {
-			childPpidDataCategoriesRes = append(childPpidDataCategoriesRes, PpidDataCategoriesResponseMapper(item, nil))
+		if childPpidDataCategoriesReq != nil && len(childPpidDataCategoriesReq) > 0 {
+			for _, item := range childPpidDataCategoriesReq {
+				childPpidDataCategoriesRes = append(childPpidDataCategoriesRes, PpidDataCategoriesResponseMapper(item, nil))
+			}
 		}
 
 		ppidDataCategoriesRes = &res.PpidDataCategoriesResponse{
diff --git a/app/module/ppid_data_categories/repository/ppid_data_categories.repository.go b/app/module/ppid_data_categories/repository/ppid_data_categories.repository.go
index 9b83068..1665196 100644
--- a/app/module/ppid_data_categories/repository/ppid_data_categories.repository.go
+++ b/app/module/ppid_data_categories/repository/ppid_data_categories.repository.go
@@ -39,7 +39,7 @@ func (_i *ppidDataCategoriesRepository) GetAll(req request.PpidDataCategoriesQue
 	var count int64
 
 	_i.Log.Info().Str("timestamp", time.Now().
-		Format(time.RFC3339)).Str("Service:GetAll", "Interface:ppidDataCategoriesRepository").
+		Format(time.RFC3339)).Str("Service:GetAlls", "Interface:ppidDataCategoriesRepository").
 		Interface("req", req).Msg("")
 
 	query := _i.DB.DB.Model(&entity.PpidDataCategories{})
@@ -134,6 +134,10 @@ func (_i *ppidDataCategoriesRepository) FindOneBySlug(slug string) (ppidDataCate
 		return nil, err
 	}
 
+	_i.Log.Info().Str("timestamp", time.Now().
+		Format(time.RFC3339)).Str("Service:FindOneBySlug", "Interface:FindOneBySlug").
+		Interface("ppidDataCategories", ppidDataCategories).Msg("")
+
 	return ppidDataCategories, nil
 }
 
diff --git a/app/module/ppid_data_categories/service/ppid_data_categories.service.go b/app/module/ppid_data_categories/service/ppid_data_categories.service.go
index 81b8e02..d0c92f6 100644
--- a/app/module/ppid_data_categories/service/ppid_data_categories.service.go
+++ b/app/module/ppid_data_categories/service/ppid_data_categories.service.go
@@ -93,7 +93,10 @@ func (_i *ppidDataCategoriesService) ShowBySlug(slug string) (ppidDataCategories
 	}
 
 	req := request.PpidDataCategoriesQueryRequest{
-		ParentId: result.ParentId,
+		ParentId: &result.ID,
+		Pagination: &paginator.Pagination{
+			Limit: 20,
+		},
 	}
 	subResult, _, _ := _i.Repo.GetAll(req)