Hi Morshed,

I do not find the mentioned 83872R in product documentation or other resources yet, is this something your application code returns, have you considered to debug that module to understand the error?
If further help is required please then raise a support case and we can provide further assistance that way.
If raising a support case please provide as much information as possible, recreate the event then generate a MFESDIAGS diagnostics collection and include the generated .zip file for review.

See link to knowledge base article for more on what MFESDIAGS is and how to use that: https://my.rocketsoftware.com/RocketCommunity/s/article/MFESDIAGS-Enterprise-Server-Diagnostic-Collection-Script-1739543924588

Regards,
Kim