Under maintenance???

Delete the .maintenance file in your wordpress root folder using FTP or whatever file management application your host provides.

there isn’t one

Check that whatever software you are using is configured to show all files. Any file that starts with ‘.’ may be hidden by default.

It still doesn’t show :-/

Site url?

BeaverIsland.cz.cc

That’s not a WordPress page!

Then how do I get rid of it??? because I have wordpress installed! and I can view me wordpress website when I am logged in

You need to speak to your hosts. I’m not even 100% sure that’s a web page in the usual sense of the name.