Hello dear developer of this plugin
Many thanks for the great plugin
there is one problem:
One of the blogs multisite has 17,000 posts
sitemap not generate,
This page contains the following errors:
error on line 6 at column 1: Extra content at the end of the document
Below is a rendering of the page up to the first error.
on other blogs multisite sitemap works
I disabled all plugins - did not help
what could be the problem?