[BullseyeHawk]

pawn Код:

public OnPlayerRequestClass(playerid, classid)
{
    if(gTeam[playerid] == 0) //line 460
    {
        SetPlayerTeamFromClass(playerid,0); //462
    }
    else if(gTeam[playerid] == 1)//line 464
    {
        SetPlayerTeamFromClass(playerid,1);
    }//line 467
    else//line 468
    {
        if(PickedClass[playerid] == 0)//line 470
        {
            ShowPlayerDialog(playerid, DIALOG_ID, DIALOG_STYLE_LIST, "Title", "listitem1\nlistitem2", "Select","Cancel");
        }
    }
}

How about now, most simple thing to fix honsetly..
EDIT: Wops sorry, posted the wrong code. Fixed now.
EDIT 2: Found some errors in the last coding, I think this is what you originaly ment.