problem with biber in mac darwin-legacy

[Oscar Jose Mesa]

Hi, I use to run latex using 2018 version in a mac OS X  10.10.3 for a long
time, no problem. Somehow I decided to update to 2020 version and
everything seems OK but biber. References don't compile and the
bibliography is not constructed. Apparently there is a compatibility issue.
Is there a fix?
Thanks anyway
I downloaded and installed following this link.
http://www.tug.org/texlive/acquire-netinstall.html

-- 
Óscar Mesa S.
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