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.
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.