After type make
I get
Error building Sage.
The following package(s) may have failed to build (not necessarily during this run of 'make all-start'):
- package: openblas-0.3.20 last build time: Feb 15 11:07 log file: /home/tr0uble/sage/sage-9.7/logs/pkgs/openblas-0.3.20.log build directory: /home/tr0uble/sage/sage-9.7/local/var/tmp/sage/build/openblas-0.3.20