server error 500 inside wp-includes

Google search console is crawling our wp-includes directory and coming up with about 50+ page errors. The errors are being found in these directories:
wp-includes/ID3
wp-includes/widgets
wp-includes/customize
wp-includes/simplePie
wp-includes/requests

Each error is stating that these 9 classes are missing:

Class ‘WP_Customize_Media_Control’
Class ‘WP_Customize_Control’
Class ‘WP_Customize_Panel’
Class ‘WP_Customize_Upload_Control’
Class ‘WP_Customize_Control’
Class ‘WP_Customize_Section’
Class ‘WP_Customize_Cropped_Image_Control’
Class ‘WP_Customize_Setting’
Class ‘WP_Customize_Image_Control’

The browser message is as follows:
Fatal error: Class ‘WP_Customize_Upload_Control’ not found in /home/usanunch/public_html/wp-includes/customize/class-wp-customize-image-control.php on line 17

At first we thought, why is Google search console indexing these? But beyond that there are two interesting points. Because we couldn’t find anything wrong with our server’s PHPini settings we started looking at other servers running WP and found that if you try to load any of the pages google is flagging with errors, these same errors are displayed on all the other sites. We even tested a 12 hour old WP install with no themes or plugin’s and the same errors came up.

I’m open for suggestions

The page I need help with: [log in to see the link]