The screenshot that you wanted to share didn’t get uploaded because the file type .tiff is not permitted for security reasons.
Thank you for sharing your site URL.
Do you mean the buttons as shown in the attached screenshot?
If yes then they don’t display on same line as they are displaying in separate widgets.
If you want to add icons in the same line as facebook or instagram then you can do so by developing custom CSS solution as described in the following reply.
https://colorlibsupport.com/t/social-icon-xing/#post-37560
In the activello theme you have to use the custom CSS code on the following path.
Admin Area -> Appearance -> Customize -> Activello Options -> Other -> Custom CSS
You can find different font awesome icons and their code on the following page.
Please note that the theme already supports pinterest icon so just use its URL in the menu same as you did for facebook and instagram.