Query to find Invalid Objects with Error in oracle apps

SELECT a.object_name, 
decode(a.object_type, 
'PACKAGE', 'Package Spec', 
'PACKAGE BODY', 'Package Body', 
a.object_type) type, 
( 
SELECT ltrim(rtrim(substr(substr(c.text, instr(c.text,'Header: ')), 
instr(substr(c.text, instr(c.text,'Header: ')), ' ', 1, 1), 
instr(substr(c.text, instr(c.text,'Header: ')), ' ', 1, 2) - 
instr(substr(c.text, instr(c.text,'Header: ')), ' ', 1, 1) 
))) || ' - ' || 
ltrim(rtrim(substr(substr(c.text, instr(c.text,'Header: ')), 
instr(substr(c.text, instr(c.text,'Header: ')), ' ', 1, 2), 
instr(substr(c.text, instr(c.text,'Header: ')), ' ', 1, 3) - 
instr(substr(c.text, instr(c.text,'Header: ')), ' ', 1, 2) 
))) 
FROM dba_source c 
WHERE c.owner = a.owner 
AND c.name = a.object_name 
AND c.type = a.object_type 
AND c.line = 2 
AND c.text like '%$Header%' 
) "File Version", 
b.text "Error Text" 
FROM dba_objects a, 
dba_errors b 
WHERE a.object_name = b.name(+) 
AND a.object_type = b.type(+) 
AND a.owner = 'APPS' 
AND a.status = 'INVALID';