Time interval error: See long text

What causes this issue?

There is a hierarchy with name &V1&, DATETO = &V3& and DATEFROM = &V2&.
The time interval of this hierarchy contains the time interval of the
hierarchy to be loaded, whereby both have the same technical name.

How to fix this error?

Change the time interval of the existing hierarchy in the hierarchy
maintenance so that the time interval of the hierarchy to be loaded is
not in the time interval of the existing hierarchy.

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.