This occurs when default keybindings had been changed before the system went live. The following is a step by step guide to reset your settings which should enable the use of the voting system.
Please keep in mind that this will reset your keybindings and they will need to be set up again!
Hold down your Windows Key + R
In the run dialog box copy the following and hit enter %LOCALAPPDATA%\xera\Saved\
Delete everything from that folder
Restart your game
If this does not fix your issue, please submit a support ticket and one of our staff will get back to you with additional troubleshooting.