Patch 12415710: 11i - is Failing With FND-UT-CMT: ORA-01041: internal error. hostdef extension doesn

While applying patch 12415710, worker is failing with below error. We have uploaded patch log file and worker failed log file.
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AD Worker error:
The following ORACLE error:

ORA-03114: not connected to ORACLE


occurred while executing the SQL statement:

UPDATE fnd_install_processes
SET skip_flag = ''
WHERE worker_id = 2

Error comitting pending transactions and closing Pro*C connection.

The error is:

FND-UT-CMT: ORA-01041: internal error. hostdef extension doesn't exist

AD Worker is exiting with failure.