diff --git a/frontend/src/app/data.service.ts b/frontend/src/app/data.service.ts
index 30f537b..30880cc 100644
--- a/frontend/src/app/data.service.ts
+++ b/frontend/src/app/data.service.ts
@@ -604,6 +604,7 @@ export class DataService {
   */
   public async fetchChanges(reqestParams: any = null){
     let stringyfiedData = JSON.stringify(reqestParams);
+    console.log(reqestParams);
     let dataJson = JSON.parse(stringyfiedData) as typeof stringyfiedData;
     const promise = new Promise(resolve=>{
       let first : boolean = true;
diff --git a/frontend/src/app/ntt-gantt/ntt-gantt.component.ts b/frontend/src/app/ntt-gantt/ntt-gantt.component.ts
index b9750ea..b9db580 100644
--- a/frontend/src/app/ntt-gantt/ntt-gantt.component.ts
+++ b/frontend/src/app/ntt-gantt/ntt-gantt.component.ts
@@ -634,6 +634,8 @@ export class NttGanttComponent implements OnInit {
     let end = start+ e.pageSize;
     this.sliceStart = start;
     this.sliceEnd = end;
+    console.log(this.sliceStart);
+    console.log(this.sliceEnd);
     this.refreshData();
   }