Error loading stylesheet: An unknown error has occurred (805303f4)

Hi,

I am seeing some error saying Error loading stylesheet: An unknown error has occurred (805303f4) while watching sitemap

https://tollywoodzoom.com/sitemap.xml

i tried removing and activating the plugin and also removed error logs and rebuild the sitemap..still problem exists and the funny thing is the xsl url is accesable when i hit directly

https://www.tollywoodzoom.com/wp-content/plugins/google-sitemap-generator/sitemap.xsl