Hello,
You need to install HikaShop when Falang is installed so it will process the links with that component.
Please note that the "installation" can be also an update. You do not need to uninstall HikaShop, just to upload the package (even the same one), to let the installation process do its job and check the database tables.
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.