ODI BP 188.8.131.52.200320 has been released as Patch 30760085.
It is available for application on top of On Premise 184.108.40.206.0.
Ensure OPatch is at correct current version and that a complete full backup is performed prior to application.
Follow the Readme carefully.
For additional information about Oracle Data Integrator and/or related patches, please visit the following resources:
Knowledge Document 456313.1 Master Note for Oracle Data Integrator (ODI) and Legacy Sunopsis, Releases and Patches
Knowledge Document 30760085.8 Bug 30760085 - ODI bundle patch 220.127.116.11.200320