If you have a backup, try restoring the backup (Backups > Restore Backup).
If you don't, get in touch with me so that we can check what can be restored.
Remember to never share your personal Wardrobe link. Otherwise people could edit or delete your items. Always share access to your Wardrobe through a link you create and permissions you set in Tools > Create Link. These links can be revoked if they are abused.
Also, protect your Wardrobe page with a password (Preferences > Security).