This is a direct feedback from Amazon that the product upload feed was rejected by Amazon.
The reasons for this can be basic problems with your Seller-Central account, such as overdue
invoices or in many cases invalid credit card details. Amazon also confirmed, it may help to
simply re-enter your Seller Central payment details and save them and try to upload again.

Furthermore, in order to be allowed to upload items via the Amazon interface, you also need
to have a Seller Central "Professional" plan.

We recommend you contact the Amazon support directly, to get further information about
the issue as to why Amazon does not accept your feed. Please follow the steps below to do so:
 

1. Log into Amazon Seller Central
    
2. Click on "Help" in the top right corner
    
3. Describe your case briefly and provide the Request ID and the Error Code and
   message in your message