Err on after update trigger

 I'm trying to create/compile a trigger to audit changes in employee data,

the code I've tried so far is:

CREATE OR REPLACE TRIGGER New_Emp_Ver_add
after update
on hr.per_addresses
for each row
begin
   insert into NEO_EMP_VERIFICATION_add
   (ADDRESS_LINE_1,
    ADDRESS_LINE_2,
    TOWN_OR_CITY,
    REGION_2,
    POSTAL_CODE)
    VALUES
   (OLD.ADDRESS_LINE_1,
    OLD.ADDRESS_LINE_2,
    OLD.TOWN_OR_CITY,
    OLD.REGION_2,
    OLD.POSTAL_CODE);
END;

the old.xxx is obviously the value of the data before it was updated,

I keep getting the error  '13/9     PL/SQL: ORA-00984: column not allowed here'

in the values section.