Hi,
I think that the issue you got is related to the template "jvfashion" which override some HikaMarket elements with old version of HikaMarket pages (1.4.2).
In HikaMarket 1.4 there was not management of variants, the product page changed with the introduction of the characteristic features.
We had several issues reported with that specific template. So the best is to remove these overrides in order to use the latest views.
If you still have some problems with the "yes/no", you can see to create a new override (base on the latest 1.6.2 views) and change the way that the buttons are made, like replacing:
echo JHTML::_('hikaselect.booleanlist', "data[product][product_published]" , '', @$this->product->product_published);
By
echo JHTML::_('select.booleanlist', "data[product][product_published]" , '', @$this->product->product_published);
to not use the bootstrap display of the "yes/no" made by HikaShop.
Regards,