Hello,
I'm sorry but I don't think your issue is related to HikaShop but it is related to something else.
If you take a look at pages, you will see entries telling that there are "too many redirection" for CSS, JS or content in the page.
If you call the page without SEF ; it's working (even if you can see content errors with the "too many redirection") :
www.dev.keylost.ca/index.php?option=com_...duct&task=show&cid=3
So you should try to create Joomla menus for other components and see if you can have some working.
But right now, there is nothing which can indicate that there is an issue with HikaShop regarding the errors you have for content files.
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.