A crash about fastjet

Dear all,
I met a problem about Root.
When I use some codes to analysis some Events which generated and launched by MadGraph3_4_2.
I saw these:

There was a crash.
This is the entire stack trace of all threads:
#0  0x00007fc6eacea45a in __GI___wait4 (pid=61638, stat_loc=stat_loc
entry=0x7ffeef68e658, options=options
entry=0, usage=usage
entry=0x0) at ../sysdeps/unix/sysv/linux/wait4.c:30
#1  0x00007fc6eacea41b in __GI___waitpid (pid=<optimized out>, stat_loc=stat_loc
entry=0x7ffeef68e658, options=options
entry=0) at ./posix/waitpid.c:38
#2  0x00007fc6eac50bcb in do_system (line=<optimized out>) at ../sysdeps/posix/system.c:171
#3  0x00007fc6ec316874 in TUnixSystem::StackTrace() () from /home/zk/HEP/RootbyCERN/root/lib/libCore.so
#4  0x00007fc6ec313b85 in TUnixSystem::DispatchSignals(ESignals) () from /home/zk/HEP/RootbyCERN/root/lib/libCore.so
#5  <signal handler called>
#6  0x0000561b0cbe0518 in fastjet::PseudoJet::pt() const ()
#7  0x0000561b0cbddfbc in main ()

I’m wonder what cause the crash and how to solve it.

Welcome to the ROOT forum

This traceback does not tell a lot about the crash.
Do you have a small reproducer or ca you show the part of you code where it crashes ?

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