I get this error when i see "Questions by User" from user profile....
Question2Answer query failed:
SELECT u.userid, COUNT(a.postid) AS qs, SUM(q.selchildid=a.postid) AS selected
FROM qa_posts a, qa_posts q, qa_users u
WHERE a.parentid=q.postid AND u.userid=a.userid AND a.type="A" AND q.type="Q" AND u.handle='pady'
Error 1140: Mixing of GROUP columns (MIN(),MAX(),COUNT(),...) with no GROUP columns is illegal if there is no GROUP BY clause
Using q2a 1.5.3