diff --git a/agrilink_vocpro/src/app/pages/dashboard/page/graph/graph.component.ts b/agrilink_vocpro/src/app/pages/dashboard/page/graph/graph.component.ts
index 2b03688..9d29608 100644
--- a/agrilink_vocpro/src/app/pages/dashboard/page/graph/graph.component.ts
+++ b/agrilink_vocpro/src/app/pages/dashboard/page/graph/graph.component.ts
@@ -301,6 +301,7 @@ export class GraphComponent implements OnInit, AfterViewInit, OnDestroy, OnChang
 
     if (this.charts['dht']) {
       this.filterData(this.activeButton);
+      console.log(this.activeButton);
     }
   }
 
@@ -455,7 +456,7 @@ export class GraphComponent implements OnInit, AfterViewInit, OnDestroy, OnChang
                   grid: { display: false },
                   beginAtZero: true,
                   ticks: {
-                    callback: (value: number | string) => {
+                    callback: (value: string | number, index: number, values: any) => {
                         if (this.activeButton === 'vicitemperature') {
                             return `${value} °C`;
                         } else if (this.activeButton === 'vicihumidity') {
@@ -513,7 +514,7 @@ export class GraphComponent implements OnInit, AfterViewInit, OnDestroy, OnChang
                   grid: { display: false },
                   beginAtZero: true,
                   ticks:{
-                    callback: (value: number | string) => {
+                    callback: (value: string | number, index: number, values: any) => {
                       if(selectedOption === 'npk'){
                         return `${value} mg/L`;
                       } else if(selectedOption === 'temperature'){