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Hi everybody,
I've just installed FreeSurfer v6 in my ubuntu 20.04 SO, but I can't open freeview due to PETSC errors. I executed "freeview" in the console, and then the following messages appear:

[0]PETSC ERROR: ------------------------------------------------------------------------
[0]PETSC ERROR: Caught signal number 8 FPE: Floating Point Exception,probably divide by zero
[0]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger
[0]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/petsc-as/documentation/troubleshooting.html#Signal[0]PETSC ERROR: or try http://valgrind.org on linux or man libgmalloc on Apple to find memory corruption errors
[0]PETSC ERROR: configure using --with-debugging=yes, recompile, link, and run  
[0]PETSC ERROR: to get more information on the crash.
[0]PETSC ERROR: --------------------- Error Message ------------------------------------
[0]PETSC ERROR: Signal received!
[0]PETSC ERROR: ------------------------------------------------------------------------
[0]PETSC ERROR: Petsc Release Version 2.3.3, Patch 13, Thu May 15 17:29:26 CDT 2008 HG revision: 4466c6289a0922df26e20626fd4a0b4dd03c8124
[0]PETSC ERROR: See docs/changes/index.html for recent updates.
[0]PETSC ERROR: See docs/faq.html for hints about trouble shooting.
[0]PETSC ERROR: See docs/index.html for manual pages.
[0]PETSC ERROR: ------------------------------------------------------------------------
[0]PETSC ERROR: Unknown Name on a linux-gnu named adeleglise by adeleglise Fri Oct 16 15:46:03 2020
[0]PETSC ERROR: Libraries linked from /autofs/space/lyon_006/pubsw/Linux2-2.3-x86_64/packages/petsc/2.3.3-p13/src/petsc-2.3.3-p13/lib/linux-gnu-c-opt
[0]PETSC ERROR: Configure run at Tue Aug 10 15:01:59 2010
[0]PETSC ERROR: Configure options --with-debugging=no --with-cc=gcc --with-fc=g77 --download-f-blas-lapack=0 --download-mpich=1 --with-mpi=1 --with-x=0 --with-gnu-copyright-code=0 --with-shared=0 COPTFLAGS=-O3 CXXOPTFLAGS=-O3 FOPTFLAGS=-O3
[0]PETSC ERROR: ------------------------------------------------------------------------
[0]PETSC ERROR: User provided function() line 0 in unknown directory unknown file
[unset]: aborting job:
application called MPI_Abort(MPI_COMM_WORLD, 59) - process 0


I have seen other people with the same problem in the mail archive, but I didn't found any effective solution.
Does anybody knows how can I solve it?
Thanks in advance.