Dear XML-Sitemap support,
After I installed new update 6.1 my problem started. To prevent errors (time and memory) I installed sitemap generator in sub domain of my website and worked and after upgrade, my website lost its Alexa rate and search engines' visitors to a great extent.
In Google webmaster it shows this massage for all sitemap:
Errors (Invalid tag value)This XML tag has an invalid value. Please fix it and resubmit.
Please help me ... for more info I attached the error from google webmaster.