Core dump during gmx saltbr

GROMACS version: 2020.3
GROMACS modification: No
I got a core dump after I ran gmx saltbr on a single node. I had given it a .xtc file under f, a .tpr file under -s, 0.5 under -t and had -sep active. The dump occurred as follows:

“Reading frame 0 time 0.000 Bus error (core dumped)”

Any idea how to troubleshoot this? I’m not sure where to start.