Hi Shubham,
UD6 is not part of standard Uniface distribution, it is a third party product. Shouldn't be the right path ask for support to the original supplier?
The only suggestion I can give you is that you are (probably) re-using an old configuration, not anymore valid with the updated driver version. Are you sure you've used as a reference the correct version of documentation? If not follow contact suggestion you've found on that screen.
Hope it helps.
Gianni