I am getting the following error while trying to check the repositories for new software:

Si verificato un errore nell'inizializzazione della sorgente di installazione.
'security': [|] Failed to cache repo (4).
Cronologia:
- 'repo2solv.sh' '-o' '/var/cache/zypp/solv/security/solv' '/var/cache/zypp/raw/security'
Unknown checksum type: 8: sha256
sed: couldn't write 22 items to stdout: Broken pipe
grep: writing output: Broken pipe
grep: writing output: Broken pipe
grep: writing output: Broken pipe
grep: writing output: Broken pipe (ans so on for a 100 times)
Is this a problem of the server side or mine? Seems to be a problem of zypper not being able to connect in a secure way, but if anyone has a suggestion would be helpful.