Hi,
The input file in the "format" column is for the options of the QRCode library.
If you want to display a special url, you have to use a dynamic text and select the QRCode formatting to transform the url text into QRCode.
I can check your HikaSerial configuration, you can send me an access by private message to your website and I will check it.
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.