sitemap works with https:// but not https://www

Hello!

This plugin always worked for me, however today, I found out the sitemap is working here:
https://newmatnorcal.com/sitemap.xml

But not here:
https://www.newmatnorcal.com/sitemap.xml

I get:
“Error loading stylesheet: An unknown error has occurred (805303f4)”

Wordpress is installed in a sub-directory… I do not wish to Override the base URL of the sitemap, I wish to appear in both locations ??

Thanks for your help and Best Regards,
Philippe

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