Can't Find Error- Help?

Msg 102, Level 15, State 1, Line 6 which is around the comment line where is shows monthly and other. Getting message incorrect systax near '/'.

@Frequencyvarchar(1),
-- 'M' = Monthly, 'O' = Other
@FiscalPeriod smallint,
@FiscalYearsmallint
as

set nocount on

DECLARE@DateFromdatetime,
@DateTodatetime


SET @DateFrom = CASE @Frequency
WHEN 'M' THEN convert(varchar,(SELECT efsc_from_date
FROM rs3_reporting.dbo.rs_entity_fiscal (NOLOCK)
WHERE efsc_to_date = (SELECT max(efsc_to_date)
FROM rs3_reporting.dbo.rs_entity_fiscal (NOLOCK)
WHERE efsc_to_date < getdate())),101) + ' 00:00:00'
WHEN 'O' THEN convert(varchar,(SELECT efsc_from_date
FROM rs3_reporting.dbo.rs_entity_fiscal (NOLOCK)
WHERE efsc_fiscal_year = @FiscalYear and efsc_fiscal_period = @FiscalPeriod),101) + ' 00:00:00'
ELSE convert(varchar,getdate()-1,101)
END

SET @DateTo = Case @Frequency
WHEN 'M' THEN convert(varchar,(SELECT efsc_to_date
FROM rs3_reporting.dbo.rs_entity_fiscal (NOLOCK)
WHERE efsc_to_date = (SELECT max(efsc_to_date)
FROM rs3_reporting.dbo.rs_entity_fiscal (NOLOCK)
WHERE efsc_to_date < getdate())),101) + ' 23:59:59'
WHEN 'O' THEN convert(varchar,(SELECT efsc_to_date
FROM rs3_reporting.dbo.rs_entity_fiscal (NOLOCK)
WHERE efsc_fiscal_year = @FiscalYear and efsc_fiscal_period = @FiscalPeriod),101) + ' 00:00:00'
ELSE convert(varchar,getdate()-1,101)
END

SET@FiscalPeriod =CASE @Frequency
WHEN 'O' THEN@FiscalPeriod
ELSE (SELECTefsc_fiscal_period
FROMrs3_reporting.dbo.rs_entity_fiscal (NOLOCK)
WHEREefsc_to_date = (SELECTmax(efsc_to_date)
FROMrs3_reporting.dbo.rs_entity_fiscal (NOLOCK)
WHEREefsc_to_date < getdate()
)
)
END

SET@FiscalYear =CASE @Frequency
WHEN 'O' THEN@FiscalYear
ELSE(SELECTefsc_fiscal_year
FROMrs3_reporting.dbo.rs_entity_fiscal (NOLOCK)
WHEREefsc_to_date = (SELECTmax(efsc_to_date)
FROMrs3_reporting.dbo.rs_entity_fiscal (NOLOCK)
WHEREefsc_to_date < getdate()
)
)
END