Your 50079.27268393 BTCZ are now on address t1TPfZ16Dr96Q1VcJRsC5RQmCkg9MSDX8AL
If you dont own private key to that address you cant do literally NOTHING.
Why it was sent if you didnt sent it ? Nobody can't explain that to you ... It could be another user of your computer made a transaction... virus ... you were drunk ... WE DONT KNOW.