Hi,
Would it be possible to have an access to your backend in order to test it ?
I can't reproduce it in my local website so it would be easier to see the problem and make a fix.
With the right to install an extension, we would be able to update your HikaShop essential with the patched version.
Thanks,
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.