Favicon unsecure ssl

Hi i am having issues with favicon being unsecure and i am trying to get green padlock. I am also have issues with plugins. I am a bit of a novice so please be gentle.

Many thanks

Daniel Kirk

Insecure URL: https://www.buckspartycruisesydney.com.au/wp-content/themes/scalia/images/favicon.ico
Found in: https://buckspartycruisesydney.com.au/

Insecure URL: https://scalia-wptheme.loc/wp-content/themes/scalia/images/footer-bg.png
Insecure URL: https://scalia-wptheme.loc/wp-content/themes/scalia/images/preloader-2.gif
Insecure URL: https://buckspartycruisesydney.com.au/wp-content/plugins/js_composer/assets/vc/alert.png
Found in: https://buckspartycruisesydney.com.au/wp-content/plugins/js_composer/assets/css/js_composer.min.css

https://www.ads-software.com/plugins/wordpress-https/