Hello,
A patch was developed but was not online because I didn't receive a feedback for fix confirmation.
I made new tests and I upload the new version of the plugin.
Please re-download it from your HikaShop order and update your website with it.
For my test website, it fixes the issue.
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.