Strange LoginPage

[intrro]

Hi!
I had to change IP address of my server. After new adresation, i couldnt get a normaln ISPCP Loging page. Instead normal Login page - to manage server i got this: monsterhosting.pl

Some Parallels Plesk Panel,?
Anyone know what it is ?
I cant log into my admin account and manage server...

when I`m typing: panel.monsterhostng.pl it routes me to the plesk domain default page.