fix for when comments don't have stats (old data / migration needed)

app/views/comment/components/comment.pug

@@ -85,7 +85,7 @@ mixin renderComment (comment, options)
           onclick=`return dtp.app.comments.submitCommentVote(event);`,
           title="Upvote this comment",
         ).uk-button.uk-button-link
-          +renderLabeledIcon('fa-chevron-up', formatCount(comment.resourceStats.upvoteCount))
+          +renderLabeledIcon('fa-chevron-up', formatCount(comment.resourceStats ? comment.resourceStats.upvoteCount : 0))
       .uk-width-auto
         button(
           type="button",
@@ -94,7 +94,7 @@ mixin renderComment (comment, options)
           onclick=`return dtp.app.comments.submitCommentVote(event);`,
           title="Downvote this comment",
         ).uk-button.uk-button-link
-          +renderLabeledIcon('fa-chevron-down', formatCount(comment.resourceStats.downvoteCount))
+          +renderLabeledIcon('fa-chevron-down', formatCount(comment.resourceStats ? comment.resourceStats.downvoteCount : 0))
       .uk-width-auto
         button(
           type="button",
@@ -102,7 +102,7 @@ mixin renderComment (comment, options)
           onclick=`return dtp.app.comments.openReplies(event);`,
           title="Load replies to this comment",
         ).uk-button.uk-button-link
-          +renderLabeledIcon('fa-comment', formatCount(comment.commentStats.replyCount))
+          +renderLabeledIcon('fa-comment', formatCount(comment.commentStats ? comment.commentStats.replyCount : 0))
       .uk-width-auto
         button(
           type="button",