Solution : https://service.sap.com/sap/support/notes/710546 (SAP Service marketplace login required)
Key words : 
activate dependent lock object <lockobject>   di829, rfc-enables lock objects existed, generated   lock object <lockobject>, generated   mc678 enqueue functions, rfc-capable lock object, semfb function group, table conversions terminate, error message referring, terms correction workbench, dependent object
Related Notes : 
       
| 718912 | Message DI829 during mass activation of lock objects |