DCC OHS Webgate Strange Error in ohs error log "ohs2.log" : yodContextUnwrap what does it mean?

Hi Oracle Community ,

Hope this post finds you well,

This is my first question here; I am using an Oracle 11gWebgate as my DCC webgate on Oracle Linux O.S; the version of it is as follows:

[oracle@SERVERNAME ~]$ cat  /idm/middleware/Oracle_OAMWebGate1/webgate/ohs/config/np12_wg.txt
Product: Oracle Access Manager
Component: WebGate
WebServer: OHS11g
Platform: linux64
Locale: en-us
Release: 11.1.2.3.0
Date: 04/01/2015

I am encountering the following error in the OHS server error  log file "ohs2.log" the error is as follows:

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[2021-09-25T10:08:36.4607+03:00] [OHS] [ERROR:32] [] [core.c] [client_id: 192.168.16.42] [host_id: prdrp2.kaau.edu.sa] [host_addr: 192.168.30.11] [pid: 14911] [tid: 140020756937024] [user: oracle] [VirtualHost: 192.168.30.11:4443]  yodContextUnwrap('1.005nCm8M41F3v1YjLpBT8A00064_000089%3BkXjE',FALSE) failed, referer: