I see a sitemap.php already in the content folder. I get

I see a sitemap.php already in the content folder. I get an error that Simple Sitemaps has been disabled due to an error with the simple-sitemaps.php

That is all it says. Perhaps the theme has a sitemap already integrated it seems. What do you reccomend? I am running a multisite and like the idea of having all sites automaticalyy get a sitemap.

When I delete the simple-sitemap.php – the error goes away

Thanks