Settlement accounting not effected for condition record (internal error)

What causes this issue?

Settlement accounting has not been carried out for a condition record
belonging to rebate arrangement &V1& due to an error.
Settlement with regard to arrangement &V1& should be carried out via one
or more customer or supplier billing documents.
Although the checking of the document generation (billing document check
run) was carried out successfully, the condition record was not taken
into account when the billing documents were posted.

System Response

Settlement accounting for rebate arrangement &V1& is terminated. No
settlement documents are posted.

How to fix this error?

The cause of the problem is probably an error in the billing interface,
or possibly an internal error in the settlement program.
The affected condition record has the (internal) number &V2&.

Error message extract from SAP system. Copyright SAP SE.