Hi,
The URL is managed by the Joomla itself ; you have to configure it in the Joomla menu configuration.
For the rest of the issue ; we will require more details about your HikaMarket (hikashop / joomla) configuration ; and the type of menu you have created in Joomla for that link.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.