Error when generating sitemap

Hello ,
I am getting a error when I try to generate the sitemap :

Fatal error: Allowed memory size of 25165824 bytes exhausted (tried to allocate 54227380 bytes) in /home/mysite/www/www.mysite.com/forums/vbseo_sitemap/vbseo_sitemap_functions.php on line 1298

Someone have an idea ? Thanks

Try disabling the Text map option (it's not needed any more)

if that doesn't fix it, you will need to give php more memory_limit in php.ini (i rec. 128mb per 2 gb of ram)