You have installed GPG, then tried to perform a git commit and suddenly you see this error message after it 😰
error: gpg failed to sign the data
fatal: failed to write commit object
Understand the error (important to solve it later!)
In the footer of your theme (something like footer.ejs) you should add Disqus script:
<% if (config.disqus_shortname){ %>
<script>
var disqus_shortname = '<%= config.disqus_shortname %>';
<% if (page.permalink){ %>
var disqus_url = '<%= config.url +"/"+ page.path %>';
<% } %>
(function(){