RedShop installation error - missing components

Hi

I just installed the component on RedShop and I also read this site:
https://awodev.com/documentation/awocoupon-redshop#Installation

.. so my PHP code looks allright.

Anyway, I still get this installation error in the "Installation Check":

COM_AWOCOUPON_FI_MSG_CORE_REQUIRED: COM_AWOCOUPON_FI_NO_POSITION
COM_AWOCOUPON_FI_MSG_SELLABLE_GIFTCERT: COM_AWOCOUPON_FI_NO_POSITION

Not installed are:
File: www/components/com_redshop/models/checkout.php

Any ideas?

Hello,

So you have one installed, the cart.php core and the other 2, in checkout.php are not installed? It seems there is currently no documentation on those installations. Is it possible to get ftp access to fix the problem? You could pm me.