hi,
i have just added this to my new site in development and saved the settings, however when i try and visit mydomain.com/sitemap.xml nothing is displayed and i receive an error message of:
Fatal error: Call to undefined function memory_get_peak_usage() in /var/www/vhosts/mydomain.com/httpdocs/
wp-content/plugins/google-sitemap-generator/sitemap-core.php on line 1460
any one have any suggestions?