ODI BP 126.96.36.199.200626 has been released as Patch 31487624.
It is available for application on top of On Premise 188.8.131.52.0.
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 31487624.8 Bug 30760085 - ODI bundle patch
Knowledge Document 2550568.1 Bundle Patches on Top of ODI 184.108.40.206.0