ORA-00918: column ambiguous defined when joining subquery table - sql

Question

The following code works:
SELECT b.AAZ002
FROM
AE02 b
INNER JOIN t_aa10 aa10
ON (aa10.AAA100 = 'AA5515' AND b.AA5515 = aa10.AAA102)
But when I change b to a subquery table, it reports ambigious column error:
SELECT b.AAZ002
FROM
(
select count(1) count1, a.BAZ379 , max(a.AB0111) AB0111, max(a.AA5515) AA5515, max(a.AAE011) AAE011
, max(a.AAE035) AAE035, max(a.AAE036) AAE036, max(a.AAE012) AAE012, max(a.AAE012) AAE012
, max(a.ZA0100) ZA0100
from AE02 a
where a.BAE028 = '1'
group by a.BAZ379
) b
INNER JOIN t_aa10 aa10
ON (aa10.AAA100 = 'AA5515' AND b.AA5515 = aa10.AAA102)
Dbeaver reported these 3 errors:
Description Resource Path Location Type
SQL Error [918] [42000]: ORA-00918: column ambiguously defined
Script-8.sql /General/Scripts Unknown Database Script Problem
SQL Error [933] [42000]: ORA-00933: SQL command not properly ended
Script-8.sql /General/Scripts Unknown Database Script Problem
SQL Error [979] [42000]: ORA-00979: not a GROUP BY expression
Script-8.sql /General/Scripts Unknown Database Script Problem
I have prefix on every column, it should not be ambiguous. What could be the cause?

Answer 1

I have corrected the sql after astentx and YoYo pointed out errors. Here is the corrected sql:
SELECT b.AAZ002
FROM
(
select count(1) count1, a.BAZ379 , max(a.AB0111) AB0111, max(a.AA5515) AA5515, max(a.AAE011) AAE011
, max(a.AAE035) AAE035, max(a.AAE036) AAE036, max(a.AAE012) AAE012, max(AAZ002) AAZ002
, max(a.ZA0100) ZA0100
from AE02 a
where a.BAE028 = '1'
group by a.BAZ379
) b
INNER JOIN t_aa10 aa10
ON (aa10.AAA100 = 'AA5515' AND b.AA5515 = aa10.AAA102)
INNER JOIN AB01 ab
ON ab.ZA0100 = b.ZA0100