Program & cannot be used

What causes this issue?

Program &V1& is not permitted for this transaction.

System Response

Only the standard programs RLLI0400 and RLLI0405 are permitted by
default.

How to fix this error?

To be able to use program &V1&, you need to maintain it in view V_T329R
using transaction SM30.

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.