new to google site maps Can someone help

[tina@aednurses]

I found google business I am building my own site from an e commerce site I had my website verified which worked but I found this area that said Invalid tag value
This XML tag has an invalid value. Please fix it and resubmit.I have no idea what google is saying to me.

Can someone help

Tina

[XML-Sitemaps Support]

Hello,

you should click "Details" to find out which line in sitemap causes that.