[Cin] [OT] Git problem, help!

[Andrea paz]

In GitHub I can no longer do a "push", that is to say uploding my
local repositories on Git.
It gives me the following error:

[paz at archpaz cin-manual-latex]$ LC_ALL=C git push
Username for 'https://github.com': Andrea-Paz
Password for 'https://Andrea-Paz@github.com':
Enumerating objects: 91, done.
Counting objects: 100% (91/91), done.
Delta compression using up to 8 threads
Compressing objects: 100% (82/82), done.
error: RPC failed; curl 56 OpenSSL SSL_read: SSL_ERROR_SYSCALL, errno 104
fatal: the remote end hung up unexpectedly
Writing objects: 100% (84/84), 13.18 MiB | 101.00 KiB/s, done.
Total 84 (delta 6), reused 80 (delta 2)
fatal: the remote end hung up unexpectedly
Everything up-to-date

The upload always stops at 52% and always with the same error. It's a
common thing, but the many ways to solve it don't work for me. See for
example:

https://stackoverflow.com/questions/6842687/the-remote-end-hung-up-unexpectedly-while-git-cloning

Can someone tell me how to fix this?