[Zh3r0]

Ah yeah, you need to close the file.

So

pawn Code:

//[...]
            INI_WriteInt(PlayerAcc,"Deaths",0);
            INI_WriteInt(PlayerAcc,"Kills",0);
            INI_Close( PlayerAcc ); //<-- this.
            SendClientMessage(playerid,ORANGE,"You have just registered, Please use /login [password] to login!");
            PInfo[playerid][Regged] = 1;