diff --git a/src/app/monitor/monitor.component.ts b/src/app/monitor/monitor.component.ts
index ce435ad..e9ff6ef 100644
--- a/src/app/monitor/monitor.component.ts
+++ b/src/app/monitor/monitor.component.ts
@@ -487,21 +487,23 @@ export class MonitorComponent implements OnInit, OnDestroy {
       this.subscriptions.push(this.statisticsService.getNumbers(this.statisticsService.getSourceType(pair[0]), pair[1]).subscribe(response => {
         if(activeSubcategory === this.activeSubCategory._id) {
           indexes.forEach(([i, j]) => {
-            let result = JSON.parse(JSON.stringify(response));
-            this.activeSubCategory.numbers[i].indicators[j].indicatorPaths[0].jsonPath.forEach(jsonPath => {
-              if (result) {
-                result = result[jsonPath];
-              }
-            });
-            if (typeof result === 'string' || typeof result === 'number') {
-              result = Number(result);
-              if (result === Number.NaN) {
+            if( this.activeSubCategory?.numbers[i]?.indicators[j]) {
+              let result = JSON.parse(JSON.stringify(response));
+              this.activeSubCategory.numbers[i].indicators[j].indicatorPaths[0].jsonPath.forEach(jsonPath => {
+                if (result) {
+                  result = result[jsonPath];
+                }
+              });
+              if (typeof result === 'string' || typeof result === 'number') {
+                result = Number(result);
+                if (result === Number.NaN) {
+                  result = 0;
+                }
+              } else {
                 result = 0;
               }
-            } else {
-              result = 0;
+              this.numberResults.set(i + '-' + j, result);
             }
-            this.numberResults.set(i + '-' + j, result);
           });
         }
       }));