i am admin of- http://biprotip.com this is a wordpress blog. q&a setup is successful! in sub directory. my q&a sites address is http://biprotip.com/ques in my site, i can ask question but when other user try to asking then falling a great problem. they cannot asking. some text is displaying like this-
Question2Answer query failed:
INSERT INTO qa_posts (categoryid, type, parentid, userid, cookieid, createip, title, content, format, tags, notify, created) VALUES (1, 'Q', NULL, '34', NULL, INET_ATON('117.18.231.16'), 'this is users question details', '', 'headline', '@', NOW())
Error 1452: Cannot add or update a child row: a foreign key constraint fails (`biprotip_biprotipblog`.`qa_posts`, CONSTRAINT `qa_posts_ibfk_1` FOREIGN KEY (`userid`) REFERENCES `qa_users` (`userid`) ON DELETE SET NULL)
