This module is currently not working in Drupal 10 because library core/jquery.once is removed from Drupal 10 and replaced by core/once.
To make it work remove in stickynav.libraries.yml the dependency core/jquery.once and add core/once. In js/stickynav.js change line 24 from
var $menu = $(selector).once('stickynav').eq(0);
to
var $menu = $(once('stickynav', selector)).eq(0);
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It's likely this issue predates Contrib.social: some issue and comment data are missing.