Hi,
Your license is not attached to any website.
Please fill it into your subscription in order to activate the auto-update feature.
HikaShop 2.1.0 has been activated for auto-updates so it is a little bit strange.
Maybe an old cache and Joomla see that the cached version "2.0.0" was not the same than the current version "2.1.0".
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.