Issues with old archives

Hi visitor,
I installed a WP update with a specific custom theme without backing up my file system and the links to the archives and categories have been lost, leading to 404 Pages. I’m aware of this. Thank you to all the people that have contacted me via email to let me know. The comment links also lead to 404 pages. We are in the process of restoring the lost files from the backups. Bear with us!
Thank you.
-PG