We started getting this error this week when trying to post a packing slip and the payment type is Credit Card, It won't let us complete the transaction.
Does anyone have insight into what is causing this?
We have SKG installed but we don't use the Credit Card function.
This error started after we updated SKG to the latest version, but our partner doesn't think the message is related.
I'm posting this question here to cast a bigger net, hoping someone knows more about this error.
The only response I see in here is from 2016, so I don't know that it's fully relevant.