Hi,
So from your message, you're using My Maps location in order to access your products.
In that case, it's the role of My Maps location to generate the link to the product page.
To remove the component/hikashop part of the URL, the only solution is to have a Itemid parameter in the non SEFed URL generated so that when Joomla process the SEF URL, it takes that parameter, look for a menu item with that id, and replace component/hikashop by the alias of that menu item (the menu item needs to be of one of the types of the HikaShop component, like a products listing, a categories listing, etc).
So then, for that to work, My Maps location needs to have a setting where you can specify that menu item (or its id) so that it can use it, or it can use one randomly.
Since the replacement is not done on your website, it means that either there is this menu item setting in My Maps location and you didn't configure it, or there isn't and this is something that should be fixed in My Maps location as there should always be an Itemid added to the URLs generated on a Joomla website frontend.
So the solution here is to contact the support of that extension so that they can tell you what to do.