Solution : https://service.sap.com/sap/support/notes/581182 (SAP Service marketplace login required)
Key words : 
'sap_cmaccptp'error invalid register state, trace files======> cpic-call, registered cpic/rfc program, cpic/rfc link, perform function sap_cmaccptp, terms sap_cmaccptp reason, latest rfc library, gateway terminates, reset properly, patch levels
Related Notes : 
       
| 619060 | QCI: New RFC server installation guide | 
| 580539 | CST Patch Collection 52 2002 |