Can anyone resolve my 'cannot access serially reusable package issue'? - sql

Question

Working on below package, when i execute P_proc3 , I receive error as
"ORA-06534: Cannot access Serially Reusable package" Need help in resolving this
I read
"The SERIALLY_REUSABLE pragma indicates that the package state is needed only for the duration of one call to the server (for example, an OCI call to the database or a stored procedure call through a database link). After this call, the storage for the package variables can be reused, reducing the memory overhead for long-running sessions."
But just understood that this package instance will not be in buffer memory.
CODE given below
create or replace PACKAGE BODY COG_MIGR_TRNS
as
PRAGMA SERIALLY_REUSABLE;
function get_itr_nm return varchar2
as
itr_name varchar2(30);
cursor c1 is
select value
from params where obj_id =45877;
begin
open c1;
fetch c1 into itr_name;
close c1;
return itr_name;
EXCEPTION
WHEN OTHERS THEN RAISE;
end;
-----------------------------------
PROCEDURE P_proc1
IS
v_nm varchar(100);
cursor c1 is
select get_iteration_name()
from dual;
BEGIN
open c1;
fetch c1 into v_nm;
close c1;
<Some more code Here using v_nm>
EXCEPTION
WHEN OTHERS THEN RAISE;
end;
------------------------
PROCEDURE P_proc2
IS
v_nm varchar(100);
cursor c1 is
select get_iteration_name()
from dual;
BEGIN
open c1;
fetch c1 into v_nm;
close c1;
<Some more code Here using v_nm>
EXCEPTION
WHEN OTHERS THEN RAISE;
end;
-------------------
PROCEDURE P_proc3
IS
v_nm varchar(100);
cursor c1 is
select get_iteration_name()
from dual;
BEGIN
P_Proc1;
P_Proc2;
EXCEPTION
WHEN OTHERS THEN RAISE;
end;