The following update was met with errors, as shown, so I was wondering if there's any news on it. It's been like this for quite a few hours now.
[root@sid ~]# apt update
Hit:1 https://deb.debian.org/debian unstable InRelease
Ign:2 https://siduction.office-vienna.at/extra unstable InRelease
Ign:3 https://siduction.office-vienna.at/fixes unstable InRelease
Hit:4 https://repo.librewolf.net librewolf InRelease
Ign:3 https://siduction.office-vienna.at/fixes unstable InRelease
Ign:2 https://siduction.office-vienna.at/extra unstable InRelease
Ign:2 https://siduction.office-vienna.at/extra unstable InRelease
Ign:3 https://siduction.office-vienna.at/fixes unstable InRelease
Err:3 https://siduction.office-vienna.at/fixes unstable InRelease
Unable to connect to siduction.office-vienna.at:https:
Err:2 https://siduction.office-vienna.at/extra unstable InRelease
Could not connect to siduction.office-vienna.at:443 (2a02:8384:205::1:51dc). - connect (111: Connection refused) Could not connect to siduction.office-vienna.at:443 (85.125.193.22). - connect (111: Connection refused)
Unable to connect to siduction.office-vienna.at:https:
1 package can be upgraded. Run 'apt list --upgradable' to see it.
Warning: Failed to fetch https://siduction.office-vienna.at/extra/dists/unstable/InRelease Unable to connect to siduction.office-vienna.at:https:
Warning: Failed to fetch https://siduction.office-vienna.at/fixes/dists/unstable/InRelease Unable to connect to siduction.office-vienna.at:https:
Warning: Some index files failed to download. They have been ignored, or old ones used instead.
Checked with downforveryone, it's not just you, the server siduction.office-vienna.at does not respond.