My site keeps going down I need help!!!

if you go to my site http://www.music-skins.com/store/
sometimes it will load but then sometimes it will just show a blank white page. someone told me to run an error report how do I do that. or can some one help me.

Depending where your site is hosted you might have to turn on error logs. Log into your hosting account to check. Turn on apache error logs and php errors if you can. It came up blank for me too, Check PHP Memory Limit might need a boost. Any recent coding/add-on changes?

ok this is what its says
[Tue Nov 11 15:43:45 2008] [error] [client 76.29.82.132] PHP Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 1245184 bytes) in /chroot/home/musicski/music-skins.com/html/store/includes/classes/seo.url.php(1064) : eval()'d code on line 1366

how do I add memory to this to make it work?

touchclothing:

ok this is what its says
[Tue Nov 11 15:43:45 2008] [error] [client 76.29.82.132] PHP Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 1245184 bytes) in /chroot/home/musicski/music-skins.com/html/store/includes/classes/seo.url.php(1064) : eval()'d code on line 1366

how do I add memory to this to make it work?
this is usually set in php.ini, contact your hosr for more info. It says that whatever seo module you are using is breaking the memory limit (probably due to caching the links in session or something. You will need to check that particular line and see what happens there)
I'm also amazed that it is using eval() there?