MDM Workflow History Causing a StringIndexOutOfBoundsException on Portal

Good day,

Could you please assist. We have a Portal webdynpro application that we use to retrieve workflow history data from MDM. This application used to work previously and produced an excel report of the performance within MDM, based on what is in the workflow history for each workflow.

Recently this application does not run for certain days. It seems that the app does not find some data that it usually finds when running in order to produce the report. Is there a way to see what data is missing from the workflow history within MDM?

Please let me know should you require more info.

Thank you.

Regards,

Simni