URL timeout: HTTP request timeout

I need help cant get my sitemap to index in google Search Console
Sitemap errors
We encountered an error while trying to access your Sitemap. Please ensure your Sitemap follows our guidelines and can be accessed at the location you provided and then resubmit.

URL timeout: HTTP request timeout
Sitemap: svgfilescuts.com/sitemap-pt-page-2016-01.xml

my website is svgfilescuts.com
sitemap https://svgfilescuts.com/sitemap.xml

Plus how long does it take to stop saying pending.

Please someone help me…..

https://www.ads-software.com/plugins/google-sitemap-generator/