Croatia is a small country and we don't have vast amounts of content in our own language, so when I search I often get bombarded with machine translated content from Russian origin. I suppose it is Russian, since there are images with text written on them that is in cyrillic.
If it were Serbian (they also use cyrillic) there would be no need for translation since we basically speak the same language and a lot of Serbian content is in latin alphabet also.
I'm just genuinely curious. I also live in a small country with a limited number of L1+2 speakers and I never see any machine translated content from Russian sources. It's not immediately obvious why Croatia would have Russian and not, say, German or English sources for machine translated content.