Open items are not displaying in FBL3N

Question

This is with regard to "FBL3N" report. When we have executed this the result is as mentioned below by item wise:-
1) Open Items :- Report is showing all items (including open & closed)
2) Closed Items :- Showing no items
3) All Items :- Showing all items (including open & closed)
I am attaching the screen shots for your reference.
It is working fine for "FBL1N" & "FBL5N".
Hence request you to provide a solution in such a way that if we execute open items in FBL3N, report should show open items alone and similarly for closed & all items.
double-post

Answer 1

so,what i need to do? i tried to change  but it is showing the below error
Message text
    Open item management is not defined for reconciliation accounts
    You cannot change the open item management setting; (see long text)
    The data contains error, you cannot save
You cannot change the open item management setting; (see long text)
    Message no. FH087
Diagnosis
    This account does not have a balance of zero.
System Response
    You cannot switch the open item management specification on or off with
    this transaction.
Procedure
    If you want to switch this function on retroactively for a certain
    account, you should create a new account with the correct setting and
    use this to make a transfer posting of existing items.
    If you want to switch off the open item management function
retroactively for an account, you must first clear all the postings
currently on this account. You cannot make any changes to the account
management method until this is done.
for this what i need to do?