FATAL: INCOMPATIBLE VOLUMES EXIST AT THE MP

What causes this issue?

IF A C5-PLUS VOLUME IS FOUND, I-C5, N-C5, AND ANYTHING ABOVE A C5-PLUS
ARE ALL INVALID VOLUMES

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.