Hi

We apologize for the delay.
For homepage sections go to Settings >> Readings >> Here you can select the latest post option so the sections will appear in the homepage.

For slider go to Appearance >> Theme Options >> Slider settings >> Here you can enable/disable slider for inner pages.

For social icons: Please send us the site url and the login details to support@flythemes.net so we can fix that.

For quick links: Go to Appearance >> Menu >> Here you can create menu name quick links and add some pages after that go to Appearance >> Widget >> Here you can add custom menu widget and add it to footer column three and select quick link menu from dropdown.

Thank You