It is giving that no fucntion setctutid exists in scope

PACKAGE global_package IS

g_CTUT_ID ORA_SYSTEM_USER.CTUT_ID%TYPE;

PROCEDURE SetCTUT_ID;
END;

PACKAGE BODY global_package
AS
PROCEDURE SetCTUT_ID
IS
BEGIN
SELECT
CTUT_ID
INTO
g_CTUT_ID
FROM
ORA_SYSTEM_USER
WHERE
CURRENT_USER_ID = user;
END;

END ;

CREATE OR REPLACE TRIGGER ORA_SYSTEM_USER_BIR_TR
BEFORE
INSERT
ON
ORA_SYSTEM_USER
FOR
EACH ROW
BEGIN
:NEW.CREATED_BY := GLOBAL_Package.CTUT_ID;
:NEW.CREATED_DATE := SYSDATE ;
END ORA_SYSTEM_USER_BIR_TR;

CREATE OR REPLACE TRIGGER ORA_SYSTEM_USER_BUR_TR
BEFORE
UPDATE
ON
ORA_SYSTEM_USER
FOR
EACH ROW
BEGIN
:NEW.UPDATED_BY := GLOBAL_Package.CTUT_ID;
:NEW.UPDATED_DATE := SYSDATE ;
END ORA_SYSTEM_USER_BIR_TR;