Fatal error: Uncaught Error: Class 'WP_Customize_Image_Control' not found in /home/uiimedu/public_html/wpuiim2020/wp-includes.bak/customize/class-wp-customize-background-image-control.php:17
Stack trace:
#0 {main}
thrown in /home/uiimedu/public_html/wpuiim2020/wp-includes.bak/customize/class-wp-customize-background-image-control.php on line 17