Getting error when I change page in version 4.6.2

[salekin02]

new version doesn't have pagination feature. If I need header and footer, I must use version 4.x. But there are the error shows. version 4.6.2

umo-editor.js:21732 Uncaught (in promise) TypeError: Cannot read properties of null (reading 'getElementById') at SU (umo-editor.js:21732:103) at watch.deep (umo-editor.js:22949:59)

Jt.getElementById("computeddiv");

I checked the page elements and found no element with id "computeddiv"

source code:

<template>
  <umo-editor
    ref="editorRef"
    v-bind="options"
    @changed:page-size="onChangedPageSize"
    @save="onSave">
    <template #page_header="props">
       <div style="height: 500px" v-html="header" />
    </template>
  </umo-editor>
</template>
 


<script setup>
import { ref } from 'vue';
import { UmoEditor } from '@umoteam/editor';

// Define the props
const props = defineProps({
  header: {
    type: String,
    default: ''
  },
  backgroundImageUrl: {
    type: String,
    default: ''
  },
  onSave: {
    type: Function,
    default: () => {}
  }
});

const editorRef = ref(null);
const options = ref({
  defaultMode: 'ribbon',
  locale: 'en-US',
});

const onChangedPageSize = (size) => {
  console.log('onChangedPageSize', size);
};

</script>

[umodoc]

see #154 .
Version 4 has some unpredictable issues caused by pagination. This error seems to be due to the timing of the pagination extension's loading. It is recommended that you pull the code, track the issue yourself, and make the necessary modifications.