Hi,
It could. Check if you have a folder templates/YOUR_TEMPLATE/html/com_hikashop/product/ via FTP.
If you do, try renaming that folder and see if you still have the problem. If you don't then it indeed comes from one of the view overrides in that folder. You can proceed to rename each file in that folder in order to identify which one is causing the problem.
If you don't, then we would need you to activate the "error reporting" and "debug mode" settings of the Joomla configuration. It should display more information about that error which will help us understand what's going on.