Hi There, I purchase the Materialize theme last week and am working on the Child Theme. I imported demo data (Creative) as started to edit the site- all seemed fine. I was working the home page today, updating then an error came up saying what I was trying to save no longer existed. I went back to the dashboard and all the pages had gone plus all contents of media library. Frustrated, I tried to reimport the demo and start again but it didn’t work. Please can you assist as I am nervous to spend any more time if this happens again!!