'Preauthorization has already been used' Error – Credit Card Payment – Paymill

Hello everyone,

first of all: amazing template, I’ve been using it for quite some time and I’m very pleased.

But after the latest Update, I’m getting an Error during the credit card payment on the website http://www.noemii.de/checkout/ after filling in the credit card details and trying to place the order

The Error in a red box:
Preauthorization has already been used

Website: http://www.noemii.de in particular http://www.noemii.de/checkout/
Wordpress: 4.1.1.
Woocommerce: 2.3.7
Plugin used for Credit Card Payment: https://wordpress.org/plugins/paymill/

Any suggestions?

Regards, Chris

• This topic was modified 10 years, 4 months ago by sirlotzington.