since the recent update, google has flagged
Parsing error: Missing ',' or '}'
on an event description containing normal html:

<script type="application/ld+json">
{
...
            "startDate": "2021-11-06",
            "endDate": "2021-11-06",
...
            "description": "<div style="color: #422100; font-family: Comic Sans MS; line-height: 1.0!important;" align="CENTER"> 
... 
</div>",
            "image": "",
            "name": "2021 Cascades Arts & Crafts Fair",
            "url": "https://mycascadescenter.org/events/2021-cascades-arts-crafts-fair/"
}
</script>