Fixed acces to non existing object

src/app/components/shared/dialog/dialog-action-buttons/dialog-action-buttons.component.ts

@@ -52,8 +52,7 @@ export class DialogActionButtonsComponent implements OnInit {
    */
   @Input() cancelButtonClickAction: (Function | undefined);
 
-  @Input() resetButtonClickAction: (Function | undefined);
-
+  
   /**
    * TRUE if some spacing will be rendered above the action buttons.
    */

src/app/components/shared/header/header.component.html

@@ -16,7 +16,7 @@
       {{cTime}}
     </h2>
 
-    <ng-container *ngIf="room.closed">
+    <ng-container *ngIf="room && room.closed">
       <h1>{{'header.questions-blocked'|translate}}</h1>
     </ng-container>