Hello Experts

I have this query

select max(DATE)as date, count(data.vou_no) as tot,
(case when data.type=1  then sum(data.vou_no) end) as ac_cr,
(case when data.type=2  then sum(data.vou_no) end) as ac_dr
	from (
	select count(vou_no)as vou_no,date, 1 as type  from vouchers where VOU_type='CR' and cr_amount>0  group by date
	union all
	select count(vou_no)as vou_no,date, 2 as type from vouchers where VOU_type='CP' and dr_amount>0 group by date
	) data
	group by date

but this query does not work
it says:
Msg 8120, Level 16, State 1, Line 3
Column 'data.type' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause.

as shown in image

How to overcome this?

Please help