Program error occurred during adjustment of operating concern &1

What causes this issue?

Operating concern "&V1&" needs to be adapted to the current release. A
program error occurred during this process. Subroutine (form) "&V3&"
does not contain form "&V2&".

System Response

The adaption process for the operating concern has been interrupted.

How to fix this error?

The system upgrade can proceed. However, you cannot use the operating
concern. You need to contact the appropriate support.

Procedure for System Administrators

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.