Solution : https://service.sap.com/sap/support/notes/78265 (SAP Service marketplace login required)
Key words : 
additional key words co01, source code corrections contained, source code error, settlement receiver automatically, short dump raise_exception, production order, system terminates, planned orders, program lck02u01, experience symptom 1
Related Notes : 
       
| 97837 | Prod.order: settlement rule f.non-valuated material | 
| 76990 | Required receiver not used in settlement profile |