404 not found error

[Wholesalediv]

Hello guys its me again asking for help. I recently installed the template 512 and now my categories are not opening again. I keep getting- "The requested url was not found". This is surprising as they were opening when i was using the template2.
Can someone tell me what is wrong?

[abolabo]

hello.
is SEO url enabled in settings?
what the url of your site?

[Wholesalediv]

Wow, really grateful! Been up all night trying to figure out the problem  but thanks to you, it is fixed. Disable the SEO url and my links are working now!
THANKS!