SageMath had been running perfectly on my linux mint xfce install, until yesterday when it started crashing on startup with the error in the attached file. I tried reinstalling sage and libgivaro9, with no effect. downgrading libgivaro produced a different error. everything has been installed through the APT repository.
if you updated a system package used in Sage, you'd need to clean and rebuild the Sage components which use this package.
(depending on the package(s) in question, it could be a big rebuild).
E.g. if you updated givaro, fflas_ffpack, linbox, and sagelib depend on it, as can be seen from
$ grep -l givaro build/pkgs/*/dep*
build/pkgs/fflas_ffpack/dependencies
build/pkgs/linbox/dependencies
build/pkgs/sagelib/dependencies
so you'd need to you'd need to rebuild them, by running
make fflas_ffpack-clean linbox-clean sagelib-clean && make rebuild