Problem with pour/legacy

Hi LIGGGHTS users,

I am fairly new to LIGGGHTS and modelling a rather simple problem.

What I am basically trying to do, is to fill the rectangular hopper of a screw conveyor, release a stopper (z-plane primitive) and finally start the screw conveyor.

My problem seems to be related to the fix pour/legacy. The same script, as attached to this post, worked when I used fix insert/pack.

Whenever I try to start the computation, I get the following output in the Terminal:
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[EDEM@localhost stopper]$ mpirun -np 2 liggghts -in in.stopper
LIGGGHTS (Version LIGGGHTS-PUBLIC 2.3.8, compiled 2013-12-13-11:18:55 by EDEM based on LAMMPS 20 Apr 2012)
Created orthogonal box = (-0.14 -0.55 -0.14) to (0.14 0.015 0.45)
1 by 1 by 2 MPI processor grid
[localhost:05941] *** Process received signal ***
Fix particledistribution/discrete (id pdens): distribution based on mass%:
part: d=6.000000e-02 (max. bounding sphere) mass%=100.000000%
Fix particledistribution/discrete (id pdens): distribution based on number%:
part: d=6.000000e-02 (max. bounding sphere) number%=100.000000%
[localhost:05941] Signal: Floating point exception (8)
[localhost:05941] Signal code: Integer divide-by-zero (1)
[localhost:05941] Failing at address: 0x6164c1
[localhost:05941] [ 0] /lib64/libpthread.so.0() [0x3436c0f210]
[localhost:05941] [ 1] liggghts(_ZN9LAMMPS_NS7FixPourC2EPNS_6LAMMPSEiPPc+0x6e1) [0x6164c1]
[localhost:05941] [ 2] liggghts(_Z19create_fix_instanceIN9LAMMPS_NS7FixPourEEPNS0_3FixEPNS0_6LAMMPSEiPPc+0x3f) [0x6fc92f]
[localhost:05941] [ 3] liggghts(_ZN9LAMMPS_NS6Modify7add_fixEiPPcS1_+0x4534) [0x6f7aa4]
[localhost:05941] [ 4] liggghts(_ZN9LAMMPS_NS5Input15execute_commandEv+0xce4) [0x6b7584]
[localhost:05941] [ 5] liggghts(_ZN9LAMMPS_NS5Input4fileEv+0x3c8) [0x6b7ad8]
[localhost:05941] [ 6] liggghts(main+0x49) [0x6c6429]
[localhost:05941] [ 7] /lib64/libc.so.6(__libc_start_main+0xfd) [0x343641eb1d]
[localhost:05941] [ 8] liggghts() [0x487c99]
[localhost:05941] *** End of error message ***
--------------------------------------------------------------------------
mpirun noticed that process rank 0 with PID 5941 on node localhost exited on signal 8 (Floating point exception).
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The LOG file is empty.

It would be great if anyone could help me with this issue. Thank you very much in advance!