& incorrect assignments have been eliminated.

What causes this issue?

You can rectify the incorrect assignments as follows:
INCLUDE RKS_0008 OBJECT DOKU ID TX LANGUAGE E

System Response

The changes are only made locally and are only written to the database
after you save the data.

How to fix this error?

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

Error message extract from SAP system. Copyright SAP SE.