When customizing the colors in the child theme’s (downloaded from your site) Customizer, I received the following error: “Unable to save due to 1 invalid setting. Setting does not exist or is unrecognized”
I just got GeneratePress Premium and GenerateBlocks Pro
I am using the GeneratePress Child Theme
I don’t have Gutenberg Installed
I wanted to use the hex color: #005999, and #A81900
I have disabled all plugins except GP Premium and still get the “Unable to save due to 1 invalid setting.Setting does not exist or is unrecognized”

What did I do wrong? Your assistance would be very much appreciated. Thank you.