Cannot register/login on https://qa-battle.com/

[Vitaliy Roshchupkin]

Steps to reproduce (?)

1. Register on https://qa-battle.com => redirects to page https://qa-battle.com/reg
2. Try to open sandbox (https://qa-battle.com/test_task) => redirects to login page
3. Try to login => nothing happens
4. Try to restore password => get error Sorry, user <email address hidden> not found.

I'd like to register and try sandbox, because I am interested in contest which will be held at 30th of June.
My email: <email address hidden>