Nodejs module has been refactored as seen here:
https://www.drupal.org/node/1261066#comment-10703962 →
the drupalchat extension should be upgraded also
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
The 7.x-1.x branch is now not supported. Any change will be done in the 7.x-2.x branch, until Drupal 7.x is not supported. It is probably better to focus on the Drupal 8 branch and make it compatible with Drupal 9 or Drupal 10.