SitemapXML v.2

[a_berezin]

SO how do I fix this problems?

To know how to fix need to know what the problem is. Check server error logs.

If the problem is in the limit on memory, try this.
- Increase the memory limit.
- Go to Admin -> Configuration -> Sitemap XML -> Check Dublicates set to false or mysql.

If the problem is in the execution time limit try to use cli interface for cron job.