If this is a new device, and it is not functioning properly, you should be contacting where you purchased it, and/or the manufacturer.
That said, have you checked with the gaming company/site to see if this is a recurring issue with the game? Also, are your drivers fully updated, and the game as well?
Also, it 'may' be a "Numlock" problem. Here are three ways to try and unlock it.
A. You can try this shortcut, press (together) the Fn + Nmlk keys.
B. You can also try disabling it in the registry...
1. Press the Windows key + R to bring up the Run box.
2. Type "regedit" and press "Enter" to open the Windows "Registry Editor".
3. In the "Registry Editor", open the following registry key.
HKEY_USER\.Default\Control Panel\Keyboard\...