Hi,
Please configure your tax zone in the HikaShop backend.
You can also set your default country by saving the address custom fields in the backend.
When I tried to see your website, I got a SQL error generated by the module "mod_sl_hikashopaccordion".
Just wanted to warn you about it (for most I know, it's not an HikaShop internal module).
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.