returnnil,fmt.Errorf("failed to connect to database: %v",err)
}
rowDuelStatus:=db.QueryRow("SELECT `duel`, `running` FROM `round` INNER JOIN `duel` ON (`round`.`duel`=`duel`.`idduel`) WHERE `idround`=?",roundID)
rowDuelStatus:=db.QueryRow("SELECT `duel`, `running`, `next` FROM `round` INNER JOIN `duel` ON (`round`.`duel`=`duel`.`idduel`) WHERE `idround`=?",roundID)