HTTP 404 - File not found When Adding Products

[Chich]

When I try to add a product under my categories(for the very first time), I get a 404 error saying page could not be found.

Please advise http://onlinenigerianshop.com/

[Website Rob]

Two suggestions.

Check your Error logs within your Hosting account.

Download the Debug Utility from the Free Add Ons, link at top of page.

Either one should help in giving more information on just what or where the problem is.

[Chich]

Two suggestions.

Check your Error logs within your Hosting account.

Download the Debug Utility from the Free Add Ons, link at top of page.

Either one should help in giving more information on just what or where the problem is.

The error just says page was not found. http://onlinenigerianshop.com/admin/...duct&x=85&y=11
I don't have a product_fabrics.php file..didn't realise I would have to create one

How do I create the .php files for all my Categories