Solution : https://service.sap.com/sap/support/notes/1541476 (SAP Service marketplace login required)
Key words :
support package reason, fix program errors, existing trex instance, program planning engine, file trex725_08-<key>, successfully apply revision 8, version file, symptom update, terms update, service pack
Related Notes :
1391758 | Compatibility of TREX ABAP CLient with TREX Server |