Hello,
Thank you for contacting us and for providing the details.
We have checked your homepage and, at the moment, we are unable to reproduce the issue. The carousel appears to be displaying the expected number of items on our end prnt.sc/mIu4RoFhJDgR.
Could you please clear your Joomla cache as well as your browser cache, then reload the homepage and check the carousel again? If you are using any CDN or caching service, please clear its cache as well.
If the issue persists after clearing the caches, please let us know and share a screenshot or short screen recording showing the extra blank items. We will be happy to investigate further.
Thank you for your cooperation.