Fatal error after update.

Hi, I updates your assets, and now I have a fatal error – see here: https://www.screencast.com/t/1aRWZchJzflu

I cannot leave the website like that, so am going to put back my backup, but I am writing here for you to know that there is a problem with your update.

Also after an update, my child-theme.css got erase and I had to do it again.

So I am thinking I will not be able to do your updates anymore!