why not "Quid sacrificas?"
Nothing wrong with that, it was also accepted for me today (06-SEPT-2019).
Sacrificatis is plural
Bro, do you even sacrifice?
Either works. Sacrificas is singular; sacrificatis, plural.
Quid sacrificas wasn't one of the available answers. Quid sacrificat was, but it said "i had a typo". Reported it.
I should be asking you this,duo
I put "quid sacrificat" and it says "you have a typo. Quid sacrificas". But Sacrificas was not among the choices available. It was either Sacrificat or Sacrificatis.
Screen shot: imgur.com/0tR0Spg
It was expecting sacrificatis to be used.