Same issue as here: https://www.ads-software.com/support/topic/missing-files-22/
Quick Fix that worked for me:
In the file viral_coming_soon.php, find the following lines and line them out.
require_once plugin_dir_path( __FILE__ ) . ‘/include-convertkit.php’;
require_once plugin_dir_path( __FILE__ ) . ‘/include-custom-html.php’;
Like this:
//require_once plugin_dir_path( __FILE__ ) . ‘/include-convertkit.php’;
//require_once plugin_dir_path( __FILE__ ) . ‘/include-custom-html.php’;