i’ve been to the site and it looks like a banner pinned topic for an event in a secured category. i think the pin just needs to be removed like Jammy pointed out. they have other similar event topics that aren’t pinned.
i reproduced similar on my forum too with an event topic.
@hellobudha if you are admin, you should update your Discourse to one of the current versions, or inform the admins of this:
content="Discourse 3.1.0.beta5…
current stable beta is Discourse 3.2.0.beta1-dev