Hi,
the jobbsse script can't get correctly the spin multiplicity for your fragments.
After you run :> jobbsse -define and your other options , the script will only setup the input files for all 5 separate subfolders (fragments, ghosts and dimer).
After that, enter each subdirectory and check the spin multiplicity that has assigned to your fragments. If it is not what you expected, then change manually by running define again.
After this manual setup, you can call the jobbsse script to run the calculation.
This worked for my systems , where i had unpaired electrons for one fragment only, but jobbsse failed to properly setup the calculation for this fragment and ghost .
Hope that helps.