post upgrade step fs_clone failed after upgrading from 12.2.0 to 12.2.3

Hi All,
I have installed (12.2.0) and upgraded to 12.2.3. The post upgrade step fs_clone is failing. Please find the errors.

[EVENT]     Calling: /erfdev/appl/shared/fs2/EBSapps/appl/ad/12.0.0/patch/115/bin/txkADOPPreparePhaseSynchronize.pl
          [STATEMENT] Output directory: /erfdev/appl/shared/fs_ne/EBSapps/log/adop/4/fs_clone_20131231_235525/ERFDEV_cgreupaio01dev
          [UNEXPECTED]Error occurred while executing <perl /erfdev/appl/shared/fs2/EBSapps/appl/ad/12.0.0/patch/115/bin/txkADOPPreparePhaseSynchronize.pl -contextfile=/erfdev/appl/shared/fs2/inst/apps/ERFDEV_cgreupaio01dev/appl/admin/ERFDEV_cgreupaio01dev.xml -patchcontextfile=/erfdev/appl/shared/fs1/inst/apps/ERFDEV_cgreupaio01dev/appl/admin/ERFDEV_cgreupaio01dev.xml -promptmsg=hide -console=off -mode=create -sessionid=4 -timestamp=20131231_235525 -outdir=/erfdev/appl/shared/fs_ne/EBSapps/log/adop/4/fs_clone_20131231_235525/ERFDEV_cgreupaio01dev>