Symptoms
After upgrading cPanel, you may experience an error with Softaculous
Incorrect binary permission Child failed to make LIVEAPI connection to cPanel.
Workaround
Reinstall Softaculous with the steps outlined in their documentation:
https://www.softaculous.com/docs/admin/reinstall/
Please note that cPanel does create the Softaculous software. For Softaculous support you can contact them on their website: https://www.softaculous.com/contact