After the recent update, I got this:
==========================================================================
your perl version (5.30.2) does not match the perl version this
app was built for (5.28.2)
please download and install the version of polymake that corresponds
to the version of your system perl
You can find the version number by executing
/usr/bin/perl --version
in a terminal.
If there is no version of the polymake app matching your perl version
please contact us at http://forum.polymake.org
==========================================================================
Any suggestion? Thanks!