Internal error: & & & & (see long text)

What causes this issue?

A program error occurred.

System Response

The current status of the program was not planned and therefore results
in an error message.

How to fix this error?

INCLUDE NA_SYSTEMVERWALTUNG OBJECT DOKU ID TX LANGUAGE EN

Procedure for System Administrators

Find out whether a solution to this error already exists via SAP Note.
Search using the terms <ZH>MIGO899 &V1& &V2& &V3& &V4&</>.
If the search does not yield results, enter a problem message quoting
the error number <ZH>MIGO 899</>. Describe in as much detail as possible
the circumstances that led to the error.

Error message extract from SAP system. Copyright SAP SE.