InfoObject &1 entered in InfoObjectCatalog &2

What causes this issue?

InfoObject catalog &V2& contains InfoObject &V1& in its active version,
which the SAP version does not contain. This InfoObject is entered when
merging the two versions with the InfoObject catalog.

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.