角 6 错误 500

当我提出GET请求并得到消息时，500 ошибку我无法接受此错误并对其进行处理，以免出现此类错误console

如何获取并处理它以显示用户的消息它在哪里？

P.s 无法创建标签

index.component.html

<tbody *ngFor="let item of category">
            <tr>
              <td>{{item.id}}</td>
              <td>{{item.translation[0].name}}</td>
              <td>{{item.status}}</td>
            </tr>
            </tbody>

index.component.ts

ngOnInit() {
    this.paginDiss = 1;
    this.four = 4;
    this.pagination = [];
    this.fullPagination = [];
    this.restDataService.getData('category').subscribe((items) => {
      this.category = items['data'];
    });
  }

服务.ts

constructor(private http: HttpClient, private router: Router) {
  }

  getData(dataUrl) {
    const url = `${environment.endpoint}${dataUrl}`;
    const header = new HttpHeaders()
    return this.http.get(url, {
      headers: header
    })
  }