Fixed the new button not working

src/app/task-form/task-form.component.ts

@@ -33,7 +33,11 @@ export class TaskFormComponent implements OnInit {
         }
         else {
             this.task = { title: this.title, content: this.content };
-            this.backendService.postTask(this.task);
+            this.backendService.postTask(this.task).subscribe(response => {
+                if (response.status > 399) {
+                  alert('Fehler');
+                }
+              });
         }
         this.submitted = true;
         this.activeModalService.close();