Tripadvisor ins Social Links

Hello,
For the theme it is not possible to add a custom social link directly.
You can either customize it using a child theme which you can check here https://catchthemes.com/blog/create-child-theme-wordpress/
Or you can use a plugin to post your custom social links.

If you have any queries and want a swift response please visit the themes official forum
https://catchthemes.com/support-forum/forum/simple-catch-public/

regards,
bplv