This API is Obsoloete for RAP migrated bo &1

What causes this issue?

BOPF Business Objects which have been migrated to the Restful ABAP
Programming Model (RAP) can no longer use the library /BOBF/CL_LI
B_DRAFT_ACTIVE.

System Response

/BOBF/CL_LIB_DRAFT_ACTIVE raises an exception if this API is requested
for a RAP BO.

How to fix this error?

The use of this API is no longer needed. As in case of RAP Draft Enabled
with Semantic Key the BOPF only is responsible for draft instances,
offering a service to distinguish into draft and active instances
doesn't make any sense anymore.

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.