MiniPOS APQT / PrintPOS APW3 / APT1- Operator ID doesn't exist

Minimize the app by using the three stripes button on the bottom left of the device. Click on the square button next to list button and the minimized window will appear. Click on the X that is on the right top corner of the window. Go back to the AddPay Cashier App and login without entering other details in the located fields. If the issue still persists phone support @ 021 3000121