Voucher label does not exist in onepagecheckout form

[Donnerberg]

Hello,

 

I have multistore site, and when someone proceed to onepagecheckout from donnerberg.net/eu/en, voucher code label does not exist.

 

But from any other store /it/ /de/ ... it works fine.

 

What it could be ? And how to enable Voucher for /eu/ store

 

Thanks alot