Unable to determine domain for account

hello colleagues,

I'm installinga portalmaking acopyhomogeneous, the problem iswhen I select theexportsource systemgives the following error,

An error occurred while processing option SAP Enhancement Package 1 for SAP NetWeaver 7.3 > Oracle > System Copy > Target System > Standard System > Based on AS Java > Standard System( Last error reported by the step: Unable to determine domain for account S-1-5-21-3369589100-665587412-2024981196-7126. The group name could not be found.). You can now:

Choose Retry to repeat the current step.

Choose Log Files to get more information about the error.

Stop the option and continue with it later.

Log files are written to C:\Program Files/sapinst_instdir/NW731/ORA/ORA/COPY/ORA/SYSTEM/STD/AS-JAVA/

Thanks.