implementing patch

Hello
I have some stupid problem:

pca -l
148730 -- < 01 ---   7 SunOS 5.10: libc_psr patch

pca -i 148730
Using /var/tmp/patchdiag.xref from Mar/28/12
Host: xxxxxxx (SunOS 5.10/Generic_147440-13/sparc/sun4u)
List: 148730 (1/7)

Patch  IR   CR RSB Age Synopsis
------ -- - -- --- --- -------------------------------------------------------
148730 -- < 01 ---   7 SunOS 5.10: libc_psr patch

Looking for 148730-01 (1/1)
Trying Oracle
Trying https://getupdates.oracle.com/ (zip) (1/1)
Failed (Unknown Error)
Failed (patch not found)
------------------------------------------------------------------------------
Download Summary: 1 total, 0 successful, 0 skipped, 1 failed

Kindly asking to help with this