Issue Summary

Users are encountering an issue with the "Contributors" feature. For some users, it functions correctly and displays the contributors, while others receive an error message ( even though they are site / space admins). 

Error rendering macro 'contributors' : com.atlassian.confluence.search.v2.InvalidSearchException: com.atlassian.confluence.api.service.exceptions.SSStatusCodeException: There was an error returned from XP-Search Aggregator API: HTTP/1.1 500 Internal Server Error

Steps to Reproduce

1. Open any confluence page with contributor macro 

Expected Results

Contributor macro should display the results properly

Actual Results

The Contributers macro functions flawlessly when “authors”, “labels”, or”'watches” are chosen but triggers an error message upon adding “comments” as "Contribute Type".

Error rendering macro 'contributors' : com.atlassian.confluence.search.v2.InvalidSearchException: com.atlassian.confluence.api.service.exceptions.SSStatusCodeException: There was an error returned from XP-Search Aggregator API: HTTP/1.1 500 Internal Server Error 

Workaround

Remove "comments" from "Contribute Type"