I've tried the Sage Pay payment module in Test Mode and all works okay, but when I set it to Live mode and go to checkout I get the following error message:

--

https://live.sagepay.com/gateway/ser...m-register.vsp

This transaction attempt has failed. Please use the Proceed button go back to the web store from which you were purchasing. The details of the failure are given below.


Status: INVALID


Status Detail: 4006 : The TxType requested is not supported on this account.


--

Can anyone help?