5 redirects I don't know how to handle?

I'm using Opencart SEO Pack PRO for my redirects.
https://www.opencart.com/index.php?rout ... on_id=6182

It helped me to redirect 404's showned in Webmaster Tools.

I solved all my redirects except five cases that I don't know hot to solve.
shop/checkout/cart
shop/account/forgotten
key/ASWD56425CSA
error/not_found
mobile/

Anybody has any idea how to redirect those?
Thanks!

Was my question to dumb to be answered?

Hello,

Why you dont try to make the redirects via htaccess?
In some cases thats is the easiest solution.

Have you asked the author of that Extension, they would know whether they should be included or not

simeon.emanuilov wrote:Hello,

Why you dont try to make the redirects via htaccess?
In some cases thats is the easiest solution.

Simply because I have no idea how to do it.

cyclops12 wrote:Have you asked the author of that Extension, they would know whether they should be included or not

The extension only allows redirect rules from an old SEO URL to another SEO URL - it doesn't allow non-SEO URLs.

I just have one question now.

The 404
error/not_found

Is that one supposed to be redirected or not?
As it's a error/not_found should it show a 404?