Xenonus

Hi, if it's wrong board - I am sorry. I'm not entirely sure the problem are redirects. But here it goes. I have a website under address - www.website.pl Recently when I navigate on it + reports from google adsense show me urls and activity from addresses like www.website.plwww.website.pl randomwordwww.website.pl or domain.plwww.website.pl But still the website is functional. I did contact my hosting provider but they were unable to recreate the issue, so I need to make some test on my own. What kind of strange url rewriting is this.. Should I be worried..? Do you know reasons standing behind it? Does anyone have encountered this kind of strange behavior? Most important - what should I do.. Is there anyone that could help? Thank you so much in advance, I am desperate (and not so fly in these kind of issues, I am not a professional webmaster..)