Hi,
I'm sorry but "last" is not a valid version number.
You did not provide any element (like a link to your website) so we are not able to understand the context or the situation.
So please provide details about your website and your configuration ; like for example the settings for "cart module" you're talking about.
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.