If you are using any of our integrated card processors to take card payments within Tally – over the phone for example – then you wouldn't want 3D Secure enabled. These are commonly referred to as 'Cardholder Not Present Transactions'.
Most payment providers are adaptable and you can enable/disable 3D Secure in the payment request, so it's not a problem. Unfortunately, with Worldpay you can't do this, and so 3D Secure needs to be turned off completely to be able to process Cardholder Not Present Transactions.
Turning off 3D Secure is not something that you can do directly within Tally, so you would need to contact Worldpay to ask how to do this.