Manathan,
Thanks for getting back to me. I went ahead and added the WP_DEBUG line in the wp-config.php file as suggested. After editing the wp-config.php file with VSCode, I was getting the error “Warning: Constant WP_DEBUG already defined in /homepages/41/d4296831832/htdocs/wordpress/wp-config.php on line 176”. I did comment out the initial WP_DEBUG line and resaved the file.
After editing and uploading the file again, I checked wordpress/wp-content/debug.log to see what errors were being provided, and was seeing 2144 lines of the following error.
“[20-Feb-2023 06:48:20 UTC] PHP Warning: Trying to access array offset on value of type int in /homepages/41/d4296831832/htdocs/wordpress/wp-content/plugins/kirki/kirki-packages/control-react-colorful/src/Control/ReactColorful.php on line 183”
Despite these errors, I can now fully access all features of the WP Customizer.