Solution : https://service.sap.com/sap/support/notes/691937 (SAP Service marketplace login required)
Key words : 
double-click transport object finb-tr-derivation, system writes error message /eacc/dr028, log displays error message ta308, double-click 'transport objects', finb-tr-derivation, remote client copy terminates, error message               ta254, select application deri, software component finbasis, enter class cl_finb_tr_deri_clientcopy
Related Notes : 
       
| 557132 | CC-TOPIC: Remote client copy | 
| 491923 | CC RELEASE: Client copy errors in Release 6.20 |