Issues with Site Map Generation

I click "Run SiteMap Generator"

I get a series of results and then at the end, i get this:

Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 5825807 bytes) in /home/*****/public_html/upload/vbseo_sitemap/vbseo_sitemap_functions.php on line 1637

I changed my vbseo settings to only include Show Post Pages, Archive Pages, Show Thread Pages, Forum Display Pages

Thoughts on how to fix this?

You have 2 ways to fix this problem
1- Increase memory_limit
2- Don't include showposts pages, Replace it with pemalinks : [How To] Replace Showpost Links with Permalinks - Max Out Search Engine Crawling Efficiency
Disable Archive, Please check my reply and Brian's reply here : New VB and VBSEO installed

Any of these 2 ways should fix your problem