[Plugin: Google XML Sitemaps] Google doesn't like sitemap.xml# listings, won't accept site

Google is rejecting the sitemap because of three listings of:
https://www.humortimes.com/sitemap.xml#
… which show up as just “x” on the sitemap, as it appears when I click on the link provided under “Location of your sitemap file” in the plugin page.

Why is that line being generated, and how can I exclude it? The only place I see for excluding things (“Excluded Items”) allows only for “List of IDs”.

For now, I’m limiting the number of posts to 300, since the above listings show up after that. By doing this, Google has accepted the sitemap. But I’d rather not have this limitation, if there’s another way to exclude these.

Thanks for any help!