Error al pagar agrupado domicilio SoftRestaurant 9.0PRO

-- Error al pagar agrupado domicilio SoftRestaurant 9.0PRO

--Consulta 1
ALTER TABLE tempcheques ADD cuentapagadaprocesada bit DEFAULT NULL

--Consulta 2
IF NOT EXISTS(SELECT * FROM syscolumns AS sc INNER JOIN sysobjects AS so ON sc.id=so.id AND sc.name='paymentmethod_id' AND so.name='tempcheques')
BEGIN
ALTER TABLE tempcheques ADD paymentmethod_id INT NOT NULL DEFAULT -1
END

IF NOT EXISTS(SELECT * FROM syscolumns AS sc INNER JOIN sysobjects AS so ON sc.id=so.id AND sc.name='paymentmethod_id' AND so.name='cheques')
BEGIN
ALTER TABLE cheques ADD paymentmethod_id INT NOT NULL DEFAULT -1
END