Hello,
Would it be possible to know when you have downloaded the plugin and what is the content of your line 406 (of the mentioned file).
In my side, the line 406 is the end of the "if" block so I do have the feeling that you're not using the latest version.
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.