Thank you Till for pointing that out.
I believe there is a small bug in 188.8.131.52:
1. i have created website and added redirection to other - works OK
2. i have than removed this redirection - shows like no redirection, but it still redirects... - i think it didn't remove redirection as it should, still redirects to other site /on monitor system log was completed
I will completely remove site, than add it again and hopefully it will solve this problems. I just need to make backups etc first.
Will report back!