Hi,
HikaShop do not have limitation of time ; your store will continue to work.
But with the expiration of the license, you will loose the possibility to update your HikaShop.
So you can renew your license to continue to receive updates in your website.
Please note if you perform an update using HikaShop starter, you will loose the features from the commercial edition you got.
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.