Guys my Cryptopia Account got hacked and all my coins got sold and stolen... by a user called kagevu... what can i do?

You scared me , I thought cryptopia has been hacked. The fact is your cryptopia account was hacked.
As trading happened, you can do nothing now . I am sorry to hear that.
I'm quite surprise how does your account hacked in cryptopia. And sold all your coins there, though Im also worried about this. Maybe I should add more security in my account.