Still getting the same error, unfortunately.
cleared my cache, killed my browser and session of WordPress dashboard.
same result 🙁
I got this issue as well!
After clicking “Appearance” > “Customize”, I get this error:
Fatal error: Cannot declare class Redux_Customizer_Control_Checkbox, because the name is already in use in /home2/hibiscw5/public_html/wp-content/plugins/redux-framework/redux-core/inc/extensions/customizer/inc/class-redux-customizer-fields.php on line 26
I get the same error from clicking “Customize” in the top bar menu that’s visible when previewing my site
My website URL is http://www.hibiscusroots.com,
and the theme is Buzz Theme by Hercules Design