Fatal error: Allowed memory size

[zumango]

I got the following error while creating sitemap. Wher do I change the setting so I don't get this error.
Thanks
Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 13715189 bytes) in /home/mysite/public_html/sitemap/pages/class.utils.inc.php(2) : eval()'d code on line 27

[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.