Your best bet for FarCry 6.0.x is probably to restore a copy of your database backup and restore the record manually, or even just copy + paste the body content into a new object (especially if it's a page attached to the tree).
If you don't have any DB backups, you *may* find an older copy of the object in the "dmArchive" table, but the data itself will be encoded in a WDDX packet in the "objectWDDX" column which you'll either have to deserialize yourself or again just try to copy + paste the body content into a new object.