our search engine which is quite sophisticated, had crashed and made the server reboot improperly.
because of that, some SQL data tables were corrupted and unrecoverable.
those tables were not vital, but they were used in some parts of the site.
so the site still loaded, but when performing certain actions, the site would be slow and unresponsive, and even not work at all.
in the meantime, the constant errors cluttered the logs, the data server, it was a nice mess.
thanks to our daily backups we were able to restore those corrupted tables, nothing was lost.