[Yashas]

Are you sure you are using the right version of the mysql plugin which was given in the tutorial?
And

Код:

#define Logindialog 0 
#define green 0x33AA33FF
#define red 0xAA3333FF

pawn Код:

stock GetPName(playerid)
{
    new str[MAX_PLAYER_NAME]; GetPlayerName(playerid,str,sizeof(str)); return str;
}

And show your PInfo declaration