反应无法在“节点”上执行“ insertBefore”？

Question

我是帖子列表的一部分。

render() {
const { posts, comments, emptyText, selectedImageToShow } = this.state;
return(
  <React.Fragment>
    {!posts.length  ? <span>Список объявлений пуст</span> : posts.map((post, key) => (
      <article key={post.id} className="uk-article uk-card uk-card uk-card-small uk-card-hover uk-card-body uk-border-rounded">
        <h3>{post.title}</h3>
        <div className="uk-grid uk-grid-small">
        ............

我在componentWillMount方法中获得了帖子列表

componentWillMount() {
    this.getPosts();
}

getPosts(){
  const { postIndex } = this.props;

  getBuildingPosts(postIndex).then(response => {
    if(response.status === 200){
      this.setState({ posts: response.data });
    }
  });
}

添加或删除帖子时，我再次调用getPost方法。

postPost() {
  ....
  addPublicPost(postcode,body).then(response => {
    if(response.status === 200){
      this.setState({emptyText: false});
      UIKit.modal.alert('Успешно', {
        labels: {
          ok: 'Закрыть'
        }
      });
      this.setState({selectedImageToShow: null, selectedImageToUpload: null});
      this.getPosts();
    }
  })

更新帖子列表后，有时会出现错误：

https://i.stack.imgur.com/7EadL.png