[Infinity90]

Replace

pawn Код:

ShowDialogForAll
//Too
ShowPlayerDialog

Show me the line?
if not try this:

pawn Код:

CMD:annrestart(playerid, params[])
    {
        if(PlayerInfo[playerid][pAdminLevel] >= 3)
        {
              for(new i=0; i < MAX_PLAYERS; i++)
              {
               new string[128];
               format(string, sizeof(string), "There is going to be a restart\nPlease /q to save your stats before the restart");
               ShowPlayerDialog(i ,100, DIALOG_STYLE_MSGBOX, "Server Restarting Soon", string, "Close", "");
               }
               return 1;
        }
        return 1;
    }