There are no errors when I turn on debugging, it just redirects me to the 404 page. I tried change the memory to 128M followed by 256M (although I’m not sure if my host lets it go that high). The URL for the site is creationbaymc.com (I linked to the page with the issue, although I guess you can’t access that page anyway).
Edit: Checked with my host, 256M is the limit for PHP.