diff --git a/npm/ng-packs/packages/core/src/lib/guards/permission.guard.ts b/npm/ng-packs/packages/core/src/lib/guards/permission.guard.ts
index d4e4b80ea9..ca69eb127d 100644
--- a/npm/ng-packs/packages/core/src/lib/guards/permission.guard.ts
+++ b/npm/ng-packs/packages/core/src/lib/guards/permission.guard.ts
@@ -3,6 +3,8 @@ import { ActivatedRouteSnapshot, CanActivate } from '@angular/router';
 import { Store } from '@ngxs/store';
 import { Observable } from 'rxjs';
 import { ConfigState } from '../states';
+import { tap } from 'rxjs/operators';
+import { RestOccurError } from '../actions';
 
 @Injectable({
   providedIn: 'root',
@@ -12,6 +14,12 @@ export class PermissionGuard implements CanActivate {
 
   canActivate({ data }: ActivatedRouteSnapshot): Observable<boolean> {
     const resource = data.requiredPolicy as string;
-    return this.store.select(ConfigState.getGrantedPolicy(resource));
+    return this.store.select(ConfigState.getGrantedPolicy(resource)).pipe(
+      tap(access => {
+        if (!access) {
+          this.store.dispatch(new RestOccurError({ status: 403 }));
+        }
+      }),
+    );
   }
 }
diff --git a/npm/ng-packs/packages/theme-shared/src/lib/handlers/error.handler.ts b/npm/ng-packs/packages/theme-shared/src/lib/handlers/error.handler.ts
index 2604bcdaab..0baff0da8f 100644
--- a/npm/ng-packs/packages/theme-shared/src/lib/handlers/error.handler.ts
+++ b/npm/ng-packs/packages/theme-shared/src/lib/handlers/error.handler.ts
@@ -53,7 +53,7 @@ export class ErrorHandler {
       const { payload: err = {} as HttpErrorResponse | any } = res;
       const body = snq(() => (err as HttpErrorResponse).error.error, DEFAULTS.defaultError.message);
 
-      if (err.headers.get('_AbpErrorFormat')) {
+      if (err instanceof HttpErrorResponse && err.headers.get('_AbpErrorFormat')) {
         const confirmation$ = this.showError(null, null, body);
 
         if (err.status === 401) {