Security patches to the site software. Enough time goes by, code hackers can find a way in. So they have to mix it up again and make some changes to the site software.
Unfortunately electricity follows the path of least resistance and things can run off the rails in the process.
Fortunately I know for a fact @Joeychgo has complete backup hard drives from the previously good working FABO web site that can be re-installed to get the site back to it's previous good working condition, with no changes.
If things go too far over the edge, Joey can always do the "System Restore".