Deathstalker Ultimate touchscreen missing features

I have a Razer Deathstalker Ultimate keyboard for a few years now, but after a while, it seems to be missing some functionality for the touchscreen on the right of the keyboard. Normally, users like me should be able to assign features to the 10 keys above the touchscreen, stuff like youtube video searching, calculators, that sort of thing. Also, being able to change the color of the keys of the keyboard. Unfortunately, I can't do that anymore. Usually, the Razer key should be used, but it does nothing. I can still use the keyboard normally, and even use the touchscreen and the two buttons below it for the mouse, but that's it. Am I missing something? As my keyboard stands, it doesn't have a Keypad, with no way of bringing one up on the touchscreen.