Post process is stopped due to error.
event_log shows the following error:
Process exited sp_opst_mt (for o.SID-o.SIDqueue MYQUE) [pid = 10933] - exit(1)
Error: Unexpected Oracle error: ORA-28112: failed to execute policy function. (object name: "SCHEMA"."TABLE") [sp_opst_mt (for o.SID-o.SID queue MYQUE)/10933]
Notice: ORA-28112: failed to execute policy function. [sp_opst_mt(osp)/10933]
The policy function has one or more error during execution.
Check oracle alert.log and trace file and correct the errors.