ga scatter acc:invalid i/j Error

title "ch+_0.04"
scratch_dir /home/ftalotta/scratch/
memory heap 100 mb stack 1200 mb global 600 mb
geometry units an print
 c 0.0000	 0.0000	 0.0000
 h 0.64	 0.0000	 0.0000
 symmetry c1
end
 
basis
 c library aug-cc-pvtz
 h library aug-cc-pvtz
end

charge 1

set lindep:tol 1.0d-7

scf
 singlet
 rhf
 maxiter 1000
end
 
task scf energy

mcscf
 state 1a
 active 15
 actelec 4
 maxiter 100
end
 
task mcscf energy

1:ga_scatter_acc:invalid i/j=(93,-1):Received an Error in Communication
--------------------------------------------------------------------------
MPI_ABORT was invoked on rank 1 in communicator MPI COMMUNICATOR 3 DUP FROM 0 
with errorcode -993.