I have a site with over 3,000 pages. In the previous version of xml-sitemap generator an error message came up every few hundred pages and I then had to continue crawling from the saved run until all the pages were crawled and the sitemap was completed. In the new version, I get the same error message and again continue saving from the saved run, but at about 400+ pages the sitemap is declared completed, and the partial sitemap appears on my server as though it is complete. What do I do? And if nothing works, is it possible to go back to the old version of the generator?