Please provide temporary wp-admin and FTP access, we will help you with the update.
For the future, never update the Core plugin before the theme update.
You need to do the update of the parent theme only, as described in our documentation. Files of the child theme need to be touched after the update only in case you rewrited parent theme files via the child theme.
Deactivation that was mentioned https://prnt.sc/y6iw3r is here – https://prnt.sc/y6iz1w , doesn’t matter parent or child theme.
Also, here are the correct folders – https://prnt.sc/y6j4skhttps://prnt.sc/y6j6jb
