reconfigure STMS after system copy

Hello,

I have 3 systems NPT, REC, PRD   NPT is the controler of domain

I have created on a new server AIX a new backup system which is the PRD's copy with the same system's name PRD

But now i can't import on this new server i have these messages :

prdadm       20140327152847 RFC: tp IMPORT all PRD pf=/usr/sap/trans/bin/TP_DOMAIN_NPT.PFL -

Dimpdp_by_event=yes -Dclientcascade=yes -Dstoponerror=8 -Drepeatonerror=8 -Dsourcesystems= -

Dbuffreset=yes -Dmainimp_proc=1 -Dbatch_proc=1 -Dstopimmediately=1 tag=spam -Dtransdir=/usr/

sap/trans

i would like deleted TMS and created a new configuration with just 1 system  but now i can't because  for him the domain is NPT

Thank you for your help

Corinne