A section disappeared or shows “Could not find asset”, what’s wrong?

That’s usually a broken section reference or schema. Liquid error (sections/...): Could not find asset means a {% render %} points at a snippet or asset that was deleted or renamed. A section that vanishes in the theme editor often has invalid {% schema %} JSON that won’t save. We repair the asset paths, fix the schema JSON, and restore the section settings so it appears and saves normally.