error occurred while processing this directive

[pzw.inc]

After a successful install, I began crawling the site. I get this error after 10 minutes: 
[an error occurred while processing this directive]

Why

[XML-Sitemaps Support]

Hello,

it looks like your server configuration doesn't allow to run the script long enough to create full sitemap. Please try to increase memory_limit and max_execution_time settings in php configuration at your host (php.ini file) or contact hosting support regarding this.