No valid repair license exists for namespace &1

What causes this issue?

This SAP system does not have a valid repair license for the namespace
&V1&.

System Response

You cannot edit objects from namespace &V1& in this SAP system, if it
has the namespace role "C" (recipient).

How to fix this error?

Have your system administrator check the change licenses of the
namespace &V1& in your SAP system.
Namespaces can be maintained with general view maintenance (transaction
SM30), view name V_TRNSPACE.
The following cases need to be distinguished:
The namespace begins with "/0SAP":
Make sure that the namespace role is "C" (recipient) and the "SSCR
popup" and "SAP standard" indicators are activated. The license fields
remain empty.
You have not created the namespace yourself, but the owner of the
namespace is SAP AG or another software manufacturer:
Make sure that the namespace role is "C" (recipient). The valid license
must either be entered in the field <LS>Repair license</>, or the "SSCR
popup" indicator must be activated. Contact the owner of the namespace,
who can tell you what you need to do and what the valid repair license
is.
You yourself are the owner of the namespace:
In this case, follow the instructions in the documentation about
applying for and setting up namespaces. The documentation describes how
you can obtain the valid development and repair license.

Error message extract from SAP system. Copyright SAP SE.