Expansion of source element &3.&4 not possible (target elem. comp. &1.&2)

What causes this issue?

An error has occurred that has prevented further processing. This is
most likely due to a Customizing error.
The following information should enable a specialist to locate the
problem so that it can be resolved more quickly.
The source of the obligatory target element component <ZH>&V1&.&V2&</>
could not be resolved during container transformation.
This concerns the source element/literal:
<ZH>&V3&</>
Expansion rule:
<ZH>&V4&</>

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?

Contact your system administrator specifying the error situation
concerned.

Error message extract from SAP system. Copyright SAP SE.