Hi,
No, it's not linked to HikaShop. I would also think that this is linked to the language plugins of Joomla.
I found a thread of the Joomla forum about this:
forum.joomla.org/viewtopic.php?t=945378
There was also a long thread of messages in the Joomla issue tracker about it:
issues.joomla.org/tracker/joomla-cms/28814
I would recommend reading carefully both before doing anything.
I agree with the persons on the tracker and I don't think there is a point it doing anything about it. But it's your website, so you do you.