How to register in order to play?

[aylmao]

Hey.
Why cannot I register on the site?
The equation is always wrong even though it's not
How to register?

"Registration
Please fix the following input errors:

Ошибка решения примера"

In translation it says wrong equation

1+1=2

And every time it's the same, how to do this?

[n0n4m3]

Try to use another browser.