Widget Styles: CSS Styles are not working

I recently updated the Sydney theme on my site and now the CSS Styles within Widgets are not applying. I don’t want to have to go and change everything manually. Can we correct this?

Site: bloombangkok.com

I have already corrected all of the problems myself. This is the second site I have had to repair since updating the Sydney theme. Even though I’m using child themes, your updates are creating problems with my sites. I shouldn’t have to deal with these issues. Though I had rated the Sydney theme five stars, I’m going to have to change that to a one or two.

Hello @dougc888,

Please remember about importance of regular full site backups (files and database):
https://codex.wordpress.org/WordPress_Backups

Also you might want to check this tutorial:

Kind Regards, Roman.