Payment not working after checkout

I have integrated this plugin as described in link https://www.yourpay.io/support/saadan-bruger-du-yourpay-i-woocommerce-2/.

But I am getting error during checkout given below:-
“R – Please contact support and validate your local settings.”
Can you please help why I am getting this error.

I am integrating this first time.

Thanks
Abhilesh

• This topic was modified 6 years, 4 months ago by Abhilesh.

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