Staff tap the card to perform transaction, terminal display error "Not Found".

Please confirm you have performed the following steps before proceeding:

1. Format the card
2. Register successfully

If yes, then, the last step you should do is to activate the card. The steps are:

1. Press F2
2. Select L4 - Card Admin
3. Then, select L1 - Activate Card
4. Then, tap the Master Card first (to approve this transaction)
5. Then, tap the Staff Card