Softaculous script manager in Linux cPanel is a great tool for easy and efficient management of site installations. I use it most often to install, remove, backup, and clone WordPress Installations.
If you see that any of your sites are listed under Disabled Scripts, you can re-enable them by clicking the red X icon. This takes you to a new screen. At this new screen, you will see 3 checked boxes. Uncheck these boxes and then scroll to the bottom of the page and click Remove.
Once the disabled site script has been removed, go back to the WordPress script installer in Softaculous and click Import. You should then be able to select your protocol and domain from dropdown menus and import your sites to the Enabled Scripts section.