999ghosts999 on "Hacked, cannot enter site"

Hello.

My page is hacked and I can't enter my dashboard either

I get:
An appropriate representation of the requested resource /home/wp-login.php could not be found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

I get this also when I try to reset my PW

Site url is: http://turning-point-balletschool.be/home/

I can see all subpages. Just not the mainpage.

Our new season is starting soon. Need urgent help!