Did you upgrade your theme? If there were custom changes its possible upgrading theme deleted them by overwriting old files with new files.
It's also possible that some plugin broke everything. This is a perfect example of why we do client backups every day, and recommend doing it to everyone you don't want to lose it when something happens.
Lastly, have you checked with godaddy to make sure they did not recover your website from an older backup? It's a long shot, but I've seen it happen with a host restoring website from an old backup for no reason.
If you don't have a backup of the website, ask Godaddy to see if they have anything recent that you can use to recover your website.