A reversal entry is missing in DFKKTHI for the reversed document

What causes this issue?

The document has been reversed, however, there is no reversal entry in
table DFKKTHI.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Find out which process failed to generate the entry, or which process
deleted the entry.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.