Display on index.php

First of all thanks for a great plugin, I’ve used it on a couple of projects and love it.

I have a single-page site and want to display the share links in the footer.
I put add_filter('dvkss_display', '__return_true'); in functions.php and added dvk_social_sharing(); to the footer template, but am not seeing anything generated.

Thanks in advance and please let me know if you need more info.

https://wordpress.org/plugins/dvk-social-sharing/