Problem with NUMPAD 3 key

Hi! I have a problem with a Razer keyboard. It's a model Ornata V3. So when I want to type a '3' from the numpad the number doesn't show up on the screen and what is the weirdest - keyboard registers the press of the key. Whats even more weirder, when the Windows starts I can easly use the '3' to type a password (the situation is the same when I use the hot key WIN+L). Also when I changed the settings in Razer Synapse 'When click 3 turns on the calculator' It also works propetly. Just a moments after logging to my acc I can use the '3' from Numpad in notepad but just after a few seconds it stops working once again. All of the Keyboard Drivers are updated and current, the hard reset of them also doesn't work. I've already tried to plug the keyboard to other USB ports, I've turned off the program completely, tried to uninstall and install once again - all for nothing. If someone have any idea how to fix it - or maybe had the same problem I'd be very grateful for help.