kenapa dota 2 update terus

yesterday I've downloaded 7.1gb Dota 2 Reborn and play normally, today I turn on Dota 2 and it keeps validating and downloading something I don't know, all 0 bytes. It happens again and again and again..... until now I still can't access to Dota 2 or Dota 2 Reborn. Valve pls fix this pls run back 2 u nct lyrics