PatchSet to 11.2.0.3 - Error occured on 'http://xmlns.oracle.com/ord/dicom/preference_1_0'

OS: Linux x86_64, Oracle 11.2.0.1

When I try to install a patch set to 11.2.0.3 the patch failes on xmlDiff:

Here ist the extraction of Oracle_Server.log:

"
REM Uncomment the following script invocation if JIT is not enabled for your
REM platform
--@@initimnc.sql

--
-- Perform in place evolve for the ordcmpf.xsd schema.
-- Update the schema annotation field.
-- Since the change to the schema is just replacing the text node of the
-- annotation field, this can be done multiple times in the case of
-- upgrade/downgrade/upgrade.
--
declare
2    xmlDiff sys.xmltype;
3  begin
4
5    xmlDiff := xmltype('<?xml version="1.0" encoding="UTF-8"?>